Exploring SIMPLE algorithm for all speeds

Rahman, Mizanur; Liu, Wenchang; Lv, Ming; Pan, Huachen

doi:10.1016/j.asej.2022.101854

Cited by 10 publications

(2 citation statements)

References 29 publications

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“…In this paper, the second-order upwind scheme was used to interpolate the discrete equations, the Realizable k-ε turbulence model was used to close the discrete equations, and then the Semi-Implicit Method for Pressure Linked Equations (SIMPLE) algorithm [37] was used to solve the discrete equations with pressure and velocity coupling.…”

Section: Determination Of the Discretization Methods And Solution Cal...mentioning

confidence: 99%

Numerical Simulation and Analysis of Hydraulic Turbines Based on BIM for Sustainable Development

Sun,

Liu,

Zhang

et al. 2023

Sustainability

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Hydropower is considered to be an important way to achieve the sustainable development goal of human progress. The performance of turbines is very important to the safety and stability of hydropower stations. Most of the hydraulic turbine performance studies only use Computational Fluid Dynamics (CFD) for performance simulation, lacking the integration of Building Information Modeling (BIM) technology and CFD. Therefore, a performance analysis model of a Francis turbine based on BIM was put forward in this paper. The BIM software OpenBuildings Designer CONNECT Edition Update 10 was used to build the hydraulic turbine model, and then the BIM model was transferred to the CFD numerical simulation platform ANSYS through the intermediate format conversion. In the ANSYS environment, the numerical simulation of different working conditions was carried out with the help of Fluent 2021 R1 software. The numerical simulation results show that the fluid velocity gradient in the volute was 2~3 m/s under the three working conditions, which was relatively stable. The water flow could progress the guide vane mechanism at a higher speed, and the drainage effect of the volute was better. There were some negative pressure areas at the back of the runner blades and the inlet of draft tube, and the negative pressure value was as high as −420,000 Pa and −436,842 Pa under maximum head conditions, which were prone to cavitation erosion. It is proven that BIM supported the hydraulic turbine performance analysis and provided a geometric information model for hydraulic turbine CFD numerical simulation, meaning that the performance analysis model based on BIM is feasible. This study can expand the application value of BIM and provide guidance for the study of hydraulic turbine numerical simulation using BIM technology in combination with CFD methods.

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Section: Determination Of the Discretization Methods And Solution Cal...mentioning

confidence: 99%

Numerical Simulation and Analysis of Hydraulic Turbines Based on BIM for Sustainable Development

Sun,

Liu,

Zhang

et al. 2023

Sustainability

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show abstract

“…The test method of Wang et al [21] was referred to and suitably modified. The model was calculated using the k-ε equation and the SIMPLE (Semi-Implicit Method for Pressure Linked Equation) algorithm [25,26]. The continuity equation, momentum equation, and energy equation are jointly solved during numerical simulation [27].…”

Section: Simulation Equations and Boundary Condition Settingsmentioning

confidence: 99%

Effect of Inclined Orifice in Air Impingement Freezer on Heat Transfer Characteristics of Steel Strip Surface

et al. 2023

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In order to improve the heat transfer characteristics of the air impingement freezer, an impingement freezer experimental table was designed as the research object in this paper. Numerical simulation technology was used to simulate the impingement freezer experimental table on the basis of test verification. When the other structural parameters in the impingement freezer experimental table were constant, the effect of the inclination angle of the orifice plate (θ = 60°, 65°, 70°, 75°, 80°, 85°, and 90°) on the heat transfer characteristics of a steel strip surface was analyzed by two aspects, the average Nusselt number and the heat transfer uniformity. The results showed that with the increase in the inclination angle of the orifice plate (60° ≤ θ ≤ 90°), the average Nusselt number of the steel strip surface was increased by 19.39%, and the heat transfer uniformity index was decreased by 33.69%. When θ = 90°, the average Nusselt number on steel strip was the maximum, which was 263.68, and the heat transfer uniformity index was the minimum, which was 0.2039. Therefore, the heat transfer intensity and heat transfer uniformity in the air impingement freezer could be improved when the inclination angle of the orifice plates was 90°. This helps to improve the output of the air impingement freezer, reduce energy consumption, and improve the quality of frozen food.

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Particle dispersion for indoor air quality control considering air change approach: A novel accelerated CFD-DNN prediction

Kek,

Bazgir,

Tan

et al. 2024

Energy and Buildings

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Exploring SIMPLE algorithm for all speeds

Cited by 10 publications

References 29 publications

Numerical Simulation and Analysis of Hydraulic Turbines Based on BIM for Sustainable Development

Numerical Simulation and Analysis of Hydraulic Turbines Based on BIM for Sustainable Development

Effect of Inclined Orifice in Air Impingement Freezer on Heat Transfer Characteristics of Steel Strip Surface

Particle dispersion for indoor air quality control considering air change approach: A novel accelerated CFD-DNN prediction

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