Performance Evaluation of the Multi-language Helios Rotorcraft Simulation Software

Author(s):  
Andrew Wissink ◽  
Sameer Shende
Buildings ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 59 ◽  
Author(s):  
Lenka Kabošová ◽  
Stanislav Kmeť ◽  
Dušan Katunský

Over the past few decades, digital tools have become indispensable in the field of architecture. The complex design tasks that make up architectural design methods benefit from utilizing advanced simulation software and, consequently, design solutions have become more nature-adapted and site-specific. Computer simulations and performance-oriented design enable us to address global challenges, such as climate change, in the preliminary conceptual design phase. In this paper, an innovative architectural design method is introduced. This method consists of the following: (1) an analysis of the local microclimate, specifically the wind situation; (2) the parametric shape generation of the airport terminal incorporating wind as a form-finding factor; (3) Computational Fluid Dynamics (CFD) analysis; and (4) wind-performance studies of various shapes and designs. A combination of programs, such as Rhinoceros (Rhino), and open-source plug-ins, such as Grasshopper and Swift, along with the post-processing software Paraview, are utilized for the wind-performance evaluation of a case study airport terminal in Reykjavik, Iceland. The objective of this wind-performance evaluation is to enhance the local wind situation and, by employing the proposed architectural shape, to regulate the wind pattern to find the optimal wind flow around the designed building. By utilizing the aforementioned software, or other open-source software, the proposed method can be easily integrated into regular architectural practice.


2021 ◽  
Vol 23 (08) ◽  
pp. 451-456
Author(s):  
Shashi Kant Jaiswal ◽  

The present study aims to apply simulation software MIKE Basin for the operation of reservoirs of Mahanadi Reservoir Project (MRP) Complex. MRP complex is a multipurpose multi reservoir system. Simulation is a technique by which we emulate the behavior of a system. Simulation is a very powerful technique in analyzing most complex water resource system in detail for performance evaluation. Reservoir operation study has been done for data of 34 years. The results extracted from the study indicated that the performance of simulation model MIKE Basin is satisfactory.


2015 ◽  
Vol 96 (1) ◽  
pp. 75-84
Author(s):  
Amberlay Ruíz Serrano ◽  
Ruben Posada Gómez ◽  
Albino Martínez Sibaja ◽  
Alberto Alfonso Aguilar Lasserre ◽  
Giner Alor Hernández ◽  
...  

Author(s):  
Alastair Nisbet ◽  
M. A. Rashid

Secure Key Deployment and Exchange Protocol (SKYE) is a new encryption Key Management Scheme (KMS) based on combination of features from recent protocols combined with new features for Mobile Ad Hoc Networks (MANETs). The design focuses on a truly ad hoc networking environment where geographical size of the network, numbers of network members, and mobility of the members is all unknown before deployment. Additionally, all key management is performed online making it distinct from most other implementations. This paper attempts to describe the process of development of the protocol and to more thoroughly discuss the simulation software design used to evaluate the performance of the proposed protocol. Simulation results show that security within the network can be increased by requiring more servers to collaborate to produce a certificate for the new member, or by requiring a higher trust threshold along the certificate request chain. SKYE works well within the limitations set by entirely online network formation and key management.


2019 ◽  
Vol 94 ◽  
pp. 01008
Author(s):  
Heyone Kim ◽  
Jae Hoon Son ◽  
Sang Heon Oh ◽  
Hyoungmin So ◽  
Dong-Hwan Hwang

In this paper, a modelling and simulation software is designed in order to evaluate the performance of a multi radio integrated navigation system and the performance evaluation results are presented. The modelling and simulation software is divided into navigation algorithm module, navigation environment generation module, and graphic user interface module with performance evaluation algorithm. In order to show the validity of the design, the modelling and simulation software for GPS, KNSS, Loran-C, eLoran, and DME/VOR is implemented in C++ under Windows OS environment. Accuracy, integrity, continuity and availability are evaluated for the multi radio integrated navigation system in the modelling and simulation software. The performance evaluation results show that the designed modelling and simulation software can be effectively used for the performance evaluation of multi radio integrated navigation systems.


2014 ◽  
Vol 668-669 ◽  
pp. 1476-1479
Author(s):  
Tang Tang ◽  
Da Zhi Sun ◽  
Vipinshankar Govindankutty

The objective of this study is to develop a microscopic simulation model to objectively compare operational improvements with capacity expansions. Simulation software VISSIM was used to redesign the existing facilities for the performance evaluation of operational improvement and capacity expansion strategies from delay time, emission and fuel consumption perspective. Two case studies were performed with different test beds to evaluate the effectiveness of performance evaluation model, majorly involving dynamic speed, ramp metering and hard shoulder usage strategies which are discussed in detail to illustrate the changes due to operational improvement and capacity expansion strategies.


This paper presents the performance evaluation results of a radial discharge centrifugal pump obtained through experimentation and CFD simulation. The paper also presents a brief theory behind the difference in the performance of a centrifugal pump operated in pump mode and turbine mode. The pump CFD simulation is performed with Star CCM+ simulation software. The pumps studied are both mono block radial discharge centrifugal pumps with rated speed of rotation per minute as 1400 and 2800 and specific speeds 20.65 (m,m3 /s) and 35.89 (m,m3 /s) respectively. The CFD results were first validated for pump mode by comparing them with the manufacturer provided performance curves. The results of CFD simulation for turbine mode operation are then compared with experimentally obtained results. The paper also presents a brief theory about PAT concept.


Author(s):  
Carl Malings ◽  
Rebecca Tanzer ◽  
Aliaksei Hauryliuk ◽  
Provat K. Saha ◽  
Allen L. Robinson ◽  
...  

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