scholarly journals Analytic design methods for wave rotor cycles

1994 ◽  
Vol 10 (5) ◽  
pp. 683-689 ◽  
Author(s):  
Edwin L. Resler ◽  
Jeffrey C. Mocsari ◽  
M. Razi Nalim
Author(s):  
Shining Chan ◽  
Huoxing Liu ◽  
Fei Xing ◽  
Hang Song

This paper adapted and extended the preliminary two-step wave rotor design method with another step of experimental validation so that it became a self-validating wave rotor design method with three steps. First, the analytic design based on unsteady pressure wave models was elucidated and adapted to a design function. It was quick and convenient for a first prediction of the wave rotor. Second, the computational fluid dynamics (CFD) simulation was adapted so that it helped to adjust the first prediction. It provided detailed information of the wave rotor inner flow. Thirdly, an experimental method was proposed to complement the validation of the wave rotor design. This experimental method realized tracing the pressure waves and the flows in the wave rotor with measurement on pressure and temperature distributions. The critical point of the experiment is that the essential flow characteristics in the rotor were reflected by the measurements in the static ports. In all, the three steps compensated for each other in a global design procedure, and formed an applicable design method for generic cases.


Author(s):  
Silvia PIZZOCARO ◽  
Pınar KAYGAN ◽  
HARMAN Kerry ◽  
Erik BOHEMIA

Co-design is a process in which designers and users collaborate as ‘equals’ to develop innovative solutions. Co-design methods are increasingly used by professional designers to facilitate and enable users to co-develop innovative solutions for ‘themselves’. For example, the Design Council is advocating the use of co-design methods to support the development of practical innovative solutions to social problems such as increased cost of elderly care and tackling child poverty. The involvement of users in developing solutions acknowledges that their take up is dependent on the ways users create and negotiate meanings of objects and services.


Author(s):  
Federico VAZ ◽  
Sharon PRENDEVILLE

Described as units developing public policies in a design-oriented manner, Policy Labs are tasked to innovate to gain in policy effectiveness and efficiency. However, as public policymaking is a context-dependent activity, the way in which these novel organisations operate significantly differs. This study discusses the emergence of design approaches for policy innovation. The purpose is to map how Policy Labs in Europe introduce design approaches at distinct stages of the policymaking cycle. For this study, 30 organisations in Europe operating at various levels of government were surveyed. Based on the public policymaking process model, it investigates which design methods are Policy Labs deploying to innovate public policies. The study exposed a gap in the awareness of the utilised methods' nature. It also showed that the use of design methods is of less importance than the introduction of design mindsets for public policy innovation, namely ‘user-centredness’, ‘co-creation’, and ‘exploration’.


PCI Journal ◽  
1959 ◽  
Vol 4 (4) ◽  
pp. 31-42
Author(s):  
H. Rusch
Keyword(s):  

Author(s):  
Hiroaki YOSHIDA ◽  
Masayuki WAKIZAKA ◽  
Shigeru YAMASHITA ◽  
Masahiro FUJITA

2020 ◽  
Vol 4 (26) ◽  
pp. 122-130
Author(s):  
A. A. Dobrovolskaya ◽  

The article deals with statistics on the development of Bicycle roads in Russia and in the world, as well as design methods for a specific section of the connection of Bicycle routes in St. Petersburg. The article discusses the experience of using and entering bike paths based on the experience of Finland, as well as the types of bike paths and infrastructure features for metropolises. A model for creating a bike path by partially narrowing the roadway, graphical functions, and analytical information are provided. Practical examples of changing the infrastructure for bike paths are given. Keywords: bike path, traffic volume, design the roadway, lane width.


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