scholarly journals Application of Fractal Growth Patterns in Housing Layout Design

2016 ◽  
Vol 3 (2) ◽  
pp. 185-207
Author(s):  
Subhadha Battina
Keyword(s):  
Growth Patterns ◽  
Design Tool ◽  
Computer Application ◽  
Fundamental Issue ◽  
Mathematical Basis ◽  
Design Options ◽  
Housing Layout ◽  
Iterative Functions ◽  
Early Phases ◽  
Orderly Arrangement

In early phases of design, during the process of form-exploration, architects -- knowingly or unknowingly -- have used mathematics as their guiding tool to evolve a formal methodology of design. Fundamental compositional principles such as symmetry, rhythm and proportion are based on specific mathematical underpinnings. However, very often the designer comes across a situation where these underlying mathematical principles need to be overlapped or interfaced. Applying fractal concepts to the order can accommodate this complex diversity. Fractals allow us to provide a combination of order and surprise in a rhythmic composition using a specific mathematical geometry. Fractals are typically unit-based and, can thus allow exploration in architectural designs which have a ‘unit’ as a fundamental issue or necessity. The design of housing layout stands out prominently among such architectural problems and, can thus be one such instance in which fractals may be used as a design tool. Commonly seen organisational patterns in housing layout designs create rigidity and monotony, while others like clustered groups are too inconsistent and can create disorder. The research tries applying fractal ordering principles to strike a balance between these extremes by creating an orderly arrangement of houses with an underlying variation in the pattern. The traditional processes of creating housing layouts is quite cumbersome. With the mathematical power of computers, fractal ordering principles are used as Iterative functions to generate multiple design options. The research investigates the potential of the emergent patterns of fractals as an organisational principle in designing housing layouts, while limiting it based on site constraints, size and the transforming rules. In doing so, the objective is to explore the computational and mathematical basis of repetitive patterns in architectural order and compositions. The study also aims at developing a computer application, based on algorithms using fractals, which offers capabilities as a conceptual and organisational tool for a housing layout. The application is implemented, tested and its results are demonstrated using a live terrain data.

Optimum Range Thermal Design With Computational Fluid Dynamics

2003 ◽  
Author(s):  
Prabhat Tekriwal
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Consumer Preference ◽  
Design Tool ◽  
Thermal Design ◽  
Good Design ◽  
Optimum Range ◽  
Consumer Safety ◽  
Temperature Requirements ◽  
Design Options

A typical cooking range design requires that UL temperature requirements be met on outside surfaces for consumer safety. Another important consumer preference is that the range oven cavity be large in capacity so that it provides more cooking flexibility to consumers. These two requirements are in conflict with each other from design standpoint. CFD (Computational Fluid Dynamics) has proven to be a good design tool in balancing these opposing requirements and providing a optimum design without having to experiment with several design options and prototyping. The width of the air-wash that is used to cool the cooking range door through natural convection has been optimized with the aid of computational fluid dynamics. Increasing the air-wash width helps reduce the door surface temperature up to certain point, beyond which no gains in temperature reduction are realized.

scholarly journals Taking into Account Users’ Perceptions in the Design Process: Principles to Create a Digital Design Tool

2021 ◽  
pp. 295-300
Author(s):  
Renato Fonseca Livramento Da Silva ◽  
Angelina Dias Leão Costa ◽  
Guillaume Thomann
Keyword(s):  
Design Process ◽  
User Behavior ◽  
Design Tool ◽  
Digital Design ◽  
Design Teams ◽  
User Perception ◽  
Public Areas ◽  
Industrial Designers ◽  
User Friendly ◽  
Early Phases

AbstractUser Centered Design approach is used in many sectors and appropriated by many design teams to defend principles of products adapted to the final users. In the Architectural and Industrial Design disciplines, architects and designers defend principles that could be able to create spaces, public areas or innovated products that are closer as possible as the user behavior. The issue is still the complexity of the user perception and the variability of its interpretation of the environment. The research method used in this research is to combine Universal Design and Usability approaches to be able to extract one first list of principles. The combination of this list with the five human sensorial systems identified in the literature give the structure of a tool that can be proposed to projectists like architects and industrial designers to better consider user perception during the designing process. The result of the research is the proposition of a software coupled with a user friendly interface dedicated to architects and industrial designer. It has the aim to simplify the organization of the early phases of the design process, taking into account designers and architects design priorities and integrating the final user specific sensorial situation.

Use of Athena Vortex Lattice for Preliminary Hydrofoil Design

2015 ◽  
Author(s):  
Katelynne R. Burrell ◽  
Joshua P. Sykes ◽  
Timothy B. Dewhurst ◽  
Zhaohui Qin
Keyword(s):  
High Speed ◽  
Vortex Lattice ◽  
Design Tool ◽  
Preliminary Design ◽  
Reference Guide ◽  
The Past ◽  
Lifting Surfaces ◽  
Lift And Drag ◽  
Design Options ◽  
Short Time

The purpose of this paper is to demonstrate the extent to which the Athena Vortex Lattice program (AVL) is useful in the design of a hydrofoil system for a solar boat. Cedarville University has won the Solar Splash Collegiate World Championship of Solar Boating 8 times in the past 12 years, and was the top university in the Top Class of the 2012 DONG Energy Solar Challenge in the Netherlands. The three main events of the Solar Splash Competition are the high-speed Slalom and Sprint events, and the longer Endurance event. In the past Cedarville has attempted to design and use hydrofoils for the Endurance event without success. Computational Fluid Dynamics (CFD) analysis for a hydrofoil system was conducted by Neola Putnam (2013 team member) using ANSYS’s CFD software, Fluent. Putnam worked with single phase flow modeling 3D hydrofoils. Fluent analysis can be a long and complicated process requiring hours of meshing followed by hours of CPU time for analysis. AVL, as an alternative, is a less complicated program allowing for simple generation of a geometry file. This program also takes a comparatively short time to analyze the imported geometry file. Thus, if AVL reliably predicts lift and drag, it could be used as a preliminary design tool to quickly assess various design options. AVL is a program which models lifting surfaces as vortex lattice sheets to determine the flight characteristics of the surface. The program is written in Fortran and is an inviscid solver. The AVL3.30 User Primer is a reference guide on how to use the program and was used extensively by the authors of this paper when learning to use AVL. Cedarville University also partnered with the company Sea Land Aire Technologies Inc.in Jackson Michigan for aid in using AVL as a design tool. The tool was recommended to Cedarville University by Sea Land Aire as a product which might be of interest to our team in the design of a hydrofoil system. AVL is potentially beneficial to the Cedarville University Solar Boat team in the preliminary design phase of a hydrofoil system. The content of this paper demonstrates the correlation between results from AVL and Fluent analysis for a 2D NACA 4412 foil. Secondly, the paper demonstrates comparable results from AVL for 3Danalysiswith published experimental results. The following sections discuss the use of AVL as a preliminary design tool, and the overall recommendation of the authors as to further use of AVL by Cedarville University in the design of a hydrofoil system.

Tacoma Shuffle

1998 ◽  
Vol 91 (3) ◽  
pp. 212-216
Author(s):  
Lyman S. Holden ◽  
Loyce K. Holden
Keyword(s):  
Problem Solving ◽  
Mathematical Induction ◽  
Computer Application ◽  
Trial And Error ◽  
C Language ◽  
Key Concepts ◽  
Proof By Induction ◽  
Iterative Functions

The key concepts discussed in this article include problem-solving activities, mathematical induction, proof by induction, and use of the phrase “without loss of generality.” Several problem-solving tools are illustrated, such as trial and error, working backward, and seeing patterns. The computer application illustrates recursive and iterative functions using C language.

The DNA of information design for charts and diagrams

2019 ◽  
Vol 25 (3) ◽  
pp. 277-292
Author(s):  
Clive Richards ◽  
Yuri Engelhardt
Keyword(s):  
Building Blocks ◽  
Information Design ◽  
Design Tool ◽  
Venn Diagrams ◽  
Visual Encoding ◽  
Extensive Range ◽  
Tree Diagram ◽  
Flow Charts ◽  
Comprehensive Framework ◽  
Design Options

Abstract A comprehensive framework is presented for analyzing and specifying an extensive range of visualizations, such as statistical charts, maps, family trees, Venn diagrams, flow charts, texts using indenting, technical drawings and scientific illustrations. This paper describes how the fundamental ‘DNA’ building blocks of visual encoding and composition can be combined into ‘visualization patterns’ that specify these and other types of visualizations. We offer different ways of specifying each visualization pattern, including through a DNA tree diagram and through a rigorously systematic natural language sentence. Using this framework, a design tool is proposed for exploring visualization design options.

scholarly journals Bathymetric and geographical trends in growth of golden redfish (Sebastes norvegicus)

2019 ◽  
Author(s):  
Natalia Llopis Monferrer ◽  
Benjamin Planque
Keyword(s):  
Age Determination ◽  
Mixed Effects ◽  
Growth Patterns ◽  
Growth Potential ◽  
Small Scale ◽  
Growth Trajectories ◽  
Fundamental Issue ◽  
Linear Mixed Effects ◽  
Size At Age

AbstractGolden redfish (Sebastes norvegicus) are a long-living (>50 years), late maturing (>10 years) species of commercial interest, distributed along the coast, shelves and continental slope of Norway, down to approximately 400 m depth in the water column. In recent years, analyses of size-at-age data have revealed variable growth trajectories for this species. Whilst some individuals appear to grow slowly after sexual maturity (37cm at ~ 15 years), others continue to grow throughout their lifetime up to 100 cm or more. To investigate how depth and latitude affect golden redfish growth patterns, we developed non-linear mixed effects statistical models. Alongside this, small scale experiments were also conducted to assess the quality of age-determination. The results showed that individuals found in deeper, northern waters present a higher growth potential, even when uncertainty in age determination and species identification were considered. The proximal causes for variations in the growth potential of S. norvegicus are still unresolved and the existence of a possible cryptic species remains a fundamental issue that will need to be addressed, in order to understand the causes behind observed growth variations.

scholarly journals Density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and Marine Protected Areas

AMBIO ◽  
2019 ◽  
Vol 49 (1) ◽  
pp. 107-117 ◽  
Author(s):  
Julian Merder ◽  
Patricia Browne ◽  
Jan A. Freund ◽  
Liam Fullbrook ◽  
Conor Graham ◽  
...  
Keyword(s):  
Fisheries Management ◽  
Marine Protected Areas ◽  
Marine Reserve ◽  
Growth Patterns ◽  
Fundamental Issue ◽  
Catch Per Unit Effort ◽  
Density Dependent ◽  
Negative Effect ◽  
Dependent Growth ◽  
Fisheries Enhancement

Abstract Stock enhancement activities provide an opportunity to examine density-dependent suppression of population biomass which is a fundamental issue for resource management and design of no-take-zones. We document ‘catch-and-wait’ fisheries enhancement where all but the largest lobsters are thrown back, recapturing them later after they have grown to a larger size. The residency, rate of return, and potential negative density-dependent effects of this activity are described using a combination of tagging and v-notching and by relating spatial growth patterns to population density defined with Catch Per Unit Effort. The results successfully demonstrated the concept of catch-and-wait practices. However, a density-dependent suppression of growth (in body size) was observed in male lobsters. This demonstrates a mechanism to explain differences in lobster sizes previously observed across EU fishing grounds with different stock densities. This negative effect of density could also affect individual biomass production in marine reserve or no-take zones.

scholarly journals An Appraisal and Classification of the Transdisciplinarity of Existing Design Tools

2020 ◽  
Author(s):  
Mark Goudswaard ◽  
Ben Hicks ◽  
Linda Newnes
Keyword(s):  
Knowledge Transfer ◽  
Design Process ◽  
Design Tool ◽  
Design Tools ◽  
Current Design ◽  
Potential Benefits ◽  
Effective Use ◽  
Engineering Projects ◽  
Early Phases

Transdisciplinary (TD) working offers the potential to bring together potentially disparate elements of engineering projects permitting them to concomitantly be addressed on empirical, pragmatic, normative and purposive levels. Whilst the importance and potential benefits of working in this manner are widely accepted, a key inhibitor to the adoption and embedding of TD working in practice is the variety and diversity of design tools employed and their relative levels of ability to support TD working. To explore what can be thought of as the enabling or inhibiting roles of design tools, this paper appraises common design tools and classifies them according to the level of transdisciplinary working that they permit. This is achieved by considering the capturable level of design rationale for each design tool as per Jantsch and contextualising each within the design process. The discussion considers how these findings are reflected in practice and how chains of particular tools could be employed to support TD working across the different phases of the design process. In total 41 tools are appraised with 6 acting as enablers of interdisciplinary working but none identified as truly TD. Most notably, a much greater proportion of TD enabling design tools are available to support the early phases of design. Further work might consider how education can be used to ensure effective use of current design tools and how knowledge transfer can and should be, applied to enable use of TD tool chains in industry.

scholarly journals Towards a circular built environment

2020 ◽  
Vol 9 (4) ◽  
pp. 635-653 ◽  
Author(s):  
Anne van Stijn ◽  
Vincent Gruis
Keyword(s):  
Built Environment ◽  
Design Tool ◽  
Design Parameters ◽  
Content Type ◽  
Building Components ◽  
Model Generator ◽  
Design Options ◽  
Circular Design ◽  
Practical Implications ◽  
Systematic Synthesis

PurposeThe transition to a circular economy in the built environment is key to achieving a resource-effective society. The built environment can be made more circular by applying circular building components. The purpose of this paper is to present a design tool that can support industry in developing circular building components.Design/methodology/approachThe tool was developed and tested in five steps. In Step 1, the authors analysed existing circular design frameworks to identify gaps and develop requirements for the design tool (Step 2). In Step 3, the authors derived circular design parameters and options from existing frameworks. In Step 4, the authors combined and specified these to develop the “circular building components generator” (CBC-generator). In Step 5, the CBC-generator was applied in the development of an exemplary component: the circular kitchen and tested in a student workshop.FindingsThe CBC-generator is a three-tiered design tool, consisting of a technical, industrial and business model generator. These generators are “parameter based”; they consist of a parameter-option matrix and design canvasses. Different variants for circular components can be synthesised by filling the canvasses through systematically “mixing and matching” design options.Research limitations/implicationsThe developed tool does not yet support establishing causal links between “parameter-options” and identification of the most circular design variant.Practical implicationsThe CBC-generator provides an important step to support the building industry in developing and implementing circular building components in the built environment.Originality/valueWhilst existing tools and frameworks are not comprehensive, nor specifically developed for designing circular building components, the CBC-generator successfully supports the integral design of circular building components. First, it provides all the design parameters which should be considered; second, it provides extensive design options per parameter; and third, it supports systematic synthesis of design options to a cohesive and comprehensive circular design.

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