scholarly journals Fluid dynamic design of an axial rotor for hydrokinetic riverbed turbine-improvement introduced by a high lift foil profile

2016 ◽  
Vol 35 (4) ◽  
pp. 1198-1206 ◽  
Author(s):  
Sergio A. Oller ◽  
Liz G. Nallim ◽  
Sergio Oller
Keyword(s):  
Fluid Dynamic ◽  
High Lift ◽  
Dynamic Design

Fast convergence of inviscid fluid dynamic design problems

2003 ◽  
Vol 32 (4) ◽  
pp. 607-627 ◽  
Author(s):  
Andrea Dadone ◽  
Bernard Grossman
Keyword(s):  
Fluid Dynamic ◽  
Fast Convergence ◽  
Inviscid Fluid ◽  
Design Problems ◽  
Dynamic Design

An Integrated Experimental-Numerical Case Study for a University Course About Dynamic Design of Turbomachinery

2007 ◽  
Author(s):  
G. Cenci ◽  
M. Pinelli
Keyword(s):  
Fluid Dynamic ◽  
Three Dimensional ◽  
Practical Experience ◽  
Great Effort ◽  
Dynamic Design ◽  
Engineering Department ◽  
University Course ◽  
The University ◽  
Numerical Case Study

In the paper, the development of an integrated experimental-numerical case study for a university course of Fluid Dynamic Design of Turbomachinery (FDDT) is presented. Since 2004, a FDDT course has been held at the Engineering Department of the University of Ferrara (Italy). The basic idea of the FDDT course is to introduce the basic and advanced ideas beyond the design of turbomachinery supported by the use of integrated three-dimensional tools. Within the course, great effort has been devoted to practical experience, both numerical and experimental. In particular, the study of a simple but exhaustive geometry may represent a good exercise where students can practically and effectively train. For this reason, during the FDDT course, a centrifugal pump has been studied both experimentally and numerically as a test geometry. In the paper, the phases necessary to carry out this kind of project are presented and discussed.

Fluid Dynamic Design Optimization of the Intake of a Small Turbojet

2006 ◽  
Author(s):  
Riccardo Amirante ◽  
Luciano A. Catalano ◽  
Andrea Dadone ◽  
Vito S. E. Daloiso ◽  
Dario Manodoro
Keyword(s):  
Design Optimization ◽  
Electricity Generation ◽  
Fluid Dynamic ◽  
Optimization Procedure ◽  
Black Box ◽  
High Load ◽  
Computational Time ◽  
Design Criteria ◽  
Dynamic Design ◽  
Gradient Based

This paper proposes an efficient gradient-based optimization procedure for black-box simulation codes and its application to the fluid-dynamic design optimization of the intake of a small-size turbojet, at high load and zero flight speed. Two simplified design criteria have been considered, which avoid to simulate the flow in any turbojet components other than the intake itself. Both design optimizations have been completed in a computational time corresponding to that required by eight flow analyses and have provided almost coincident optimal profiles for the intake. The flow fields computed with the original and the optimal profiles are compared to demonstrate the flow pattern improvements that can be theoretically achieved. Finally, the original and the optimal profiles have been mounted on the same small-size turbojet and experimentally tested, to assess the resulting improvements in terms of overall performances. All numerical and experimental results can be obviously extended to the intake of a microturbine for electricity generation.

Development of a New Disposable Pulsatile Pump for Cardiopulmonary Bypass: Computational Fluid-Dynamic Design and In Vitro Tests

ASAIO Journal ◽  
2002 ◽  
Vol 48 (3) ◽  
pp. 260-267 ◽  
Author(s):  
Gianfranco B. Fiore ◽  
Alberto Redaelli ◽  
Gualtiero Guadagni ◽  
Fabio Inzoli ◽  
Roberto Fumero
Keyword(s):  
Cardiopulmonary Bypass ◽  
Computational Fluid Dynamic ◽  
Fluid Dynamic ◽  
In Vitro Tests ◽  
Dynamic Design ◽  
Pulsatile Pump

scholarly journals Analisis karakteristik aerodinamika telescopic wing dengan konfigurasi sayap flying wing dan glider menggunakan metode pendekatan simulasi CFD

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Azhim Asyratul Azmi ◽  
Satriawan Dini Hariyanto ◽  
Arif Hidayat
Keyword(s):  
Cfd Simulation ◽  
Fluid Dynamic ◽  
Angle Of Attack ◽  
Leading Edge ◽  
Aerodynamic Characteristics ◽  
Morphing Wing ◽  
Aircraft Wing ◽  
High Lift ◽  
Tip Vortices ◽  
Wing Tip

A telescopic wing is a shape-changing method of the aircraft wing known as the morphing wing system. Wingspan extends capability on telescopic wing increasing the aspect ratio to get a high lift force. The telescopic wing on a flying wing configuration as an external wing and glider wing as an internal wing can be used to increase the coefficient lift (CL) when carrying out special missions. The aerodynamic characteristics using the Computational Fluid Dynamic (CFD) simulation approach is presented. For the 40% internal wingspan, the highest CL increment was 12.9% at a 10o angle of attack. For the 50% internal wingspan, the highest CL increment was 14.9% at a 10o angle of attack. on the 40% internal wing, the highest coefficient drag (CD) increment was 4.7%, and the largest CD increment on 50% internal was 9.5% at the angle of attack of 20o. The pressure distribution along the internal wingspan was uneven from an angle of attack of 15o due to the wing tip vortices of the external wing. Streamline pattern shown a bubble separation from the leading edge at an internal wing root by external wing tip vortices.Keywords: Morphing wing, telescopic wing, flying wing, glider

Fluid Dynamic Design and Optimization of Two Stage Centrifugal Fan for Industrial Burners

2011 ◽  
Author(s):  
C. Ferrari ◽  
M. Pinelli ◽  
P. R. Spina ◽  
P. Bolognin ◽  
L. Borghi
Keyword(s):  
Fluid Dynamic ◽  
Three Dimensional ◽  
Numerical Procedure ◽  
Design Stage ◽  
Centrifugal Fan ◽  
Cfd Simulations ◽  
Two Stage ◽  
Dynamic Design ◽  
Design And Optimization ◽  
Preliminary Design Stage

In this paper, the fluid dynamic design of a two-stage centrifugal fan for industrial burner application is presented. The design is carried out by means of an integrated 1D/3D numerical procedure based on the use of CFD simulations. The CFD simulations are used either at the preliminary design stage to choose among competitive one- or two-dimensional geometries and then to test the generated three-dimensional geometries. The results show how the different design choices could impact on the performance parameters and, finally, how the analysis of the various alternatives allows the determination of the overall geometry of a complete and performing two-stage centrifugal fan.

Sign in / Sign up

Export Citation Format

Share Document