Simulation-based Design Optimization of Centrifugal Compressor, Using Computational Fluid Dynamics Methods

2021 ◽  
Author(s):  
Mohammad Omidi ◽  
Soheil Mohtaram ◽  
Ali Omidi
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Design Optimization ◽  
Centrifugal Compressor ◽  
Simulation Based Design ◽  
Simulation Based

Simulation-based design and optimization of Francis turbine runners by using multiple types of metamodels

2016 ◽  
Vol 231 (8) ◽  
pp. 1427-1444 ◽  
Author(s):  
Fatma Ayancik ◽  
Erdem Acar ◽  
Kutay Celebioglu ◽  
Selin Aradag
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Turbine Blades ◽  
Optimization Techniques ◽  
Francis Turbine ◽  
Process Time ◽  
Optimization Approach ◽  
Nonlinear Simulation ◽  
Simulation Based Design ◽  
Simulation Based

In recent years, optimization started to become popular in several engineering disciplines such as aerospace, automotive and turbomachinery. Optimization is also a powerful tool in hydraulic turbine industry to find the best performance of turbines and their sub-elements. However, direct application of the optimization techniques in design of hydraulic turbines is impractical due to the requirement of performing computationally expensive analysis of turbines many times during optimization. Metamodels (or surrogate models) that can provide fast response predictions and mimic the behavior of nonlinear simulation models provide a remedy. In this study, simulation-based design of Francis type turbine runner is performed by following a metamodel-based optimization approach that uses multiple types of metamodels. A previously developed computational fluid dynamics-based methodology is integrated to the optimization process, and the results are compared to the results obtained from on-going computational fluid dynamics studies. The results show that, compared to the conventional methods such as computational fluid dynamics-based methods, metamodel-based optimization can shorten the design process time by a factor of 9.2. In addition, with the help of optimization, turbine performance is increased while cavitation on the turbine blades, which can be harmful for the turbine and reduce its lifespan, is reduced.

scholarly journals Research of a Spatial Flow of a Low-Flow Stage of a Svd-22 Centrifugal Compressor by Computational Fluid Dynamics Methods Using Super-Computer Technologies

2020 ◽  
Vol 220 ◽  
pp. 01082
Author(s):  
Yuri Kozhukhov ◽  
Serafima Tatchenkova ◽  
Sergey Kartashov ◽  
Vyacheslav Ivanov ◽  
Evgeniy Nikitin
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Centrifugal Compressor ◽  
Low Flow ◽  
Centrifugal Compressors ◽  
Control Measurement ◽  
Flow Features ◽  
Super Computer ◽  
Multistage Compressors ◽  
Flow Stage

This paper provides the results of the study of a spatial flow in a low-flow stage of a SVD-22 centrifugal compressor of computational fluid dynamics methods using the Ansys CFX 14.0 software package. Low flow stages are used as the last stages of multistage centrifugal compressors. Such multistage compressors are widely used in boosting compressor stations for natural gas, in chemical industries. The flow features in low-flow stages require independent research. This is due to the fact that the developed techniques for designing centrifugal compressor stages are created for medium-flow and high-flow stages and do not apply to low-flow stages. Generally at manufacturing new centrifugal compressors, it is impossible to make a control measurement of the parameters of the working process inside the flow path elements. Computational fluid dynamics methods are widely used to overcome this difficulties. However verification and validation of CFD methods are necessary for accurate modeling of the workflow. All calculations were conducted on one of the SPbPU clusters. Parameters of one cluster node: AMD Opteron 280 2 cores, 8GB RAM. The calculations were conducted using 4 nodes (HP MPI Distributed Parallel startup type) with their full load by parallelizing processes on each node.

Transport Enhancement in Tunable Laser Cavity Sensor

2002 ◽  
Author(s):  
M. Sigurdson ◽  
C. Meinhart ◽  
D. Wang ◽  
X. Liu ◽  
J. J. Feng ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Design Optimization ◽  
Tunable Laser ◽  
Laser Cavity ◽  
Cfd Modeling ◽  
Physical Processes ◽  
Transport Enhancement ◽  
Computational Fluid Dynamics Cfd ◽  
Electrothermal Flow

Dielectrophoresis and Electrothermal Flow are two physical processes investigated for enhancing transport of antigen to a region of immobilized conjugate antibodies on an immunosensor surface. Computational fluid dynamics (CFD) modeling is employed to understand these phenomena in detail to aid in the design optimization of the device.

Computational-Fluid-Dynamics-Based Design Optimization for Single-Element Rocket Injector

2004 ◽  
Vol 20 (4) ◽  
pp. 705-717 ◽  
Author(s):  
Rajkumar Vaidyanathan ◽  
P. Kevin Tucker ◽  
Nilay Papila ◽  
Wei Shyy
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Design Optimization ◽  
Single Element

Turbocharger Centrifugal Compressor Casing Treatment for Improved BPF Noise Using Computational Fluid Dynamics

2019 ◽  
Author(s):  
Ahsanul Karim ◽  
Matthew Mckean ◽  
Rick Dehner ◽  
Ahmet Selamet ◽  
Chris Tiernan ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Centrifugal Compressor ◽  
Casing Treatment
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