15 Questions 14 Answers 0 Followers
Questions related from Armin Hajighasem Kashani
Hello all, I'm doing a 2D simulation of flow beneath a partially-submerged rectangular bluff body. The problem's geometry is shown in the figure attached. I'm using a fully structured hexahedral...
11 August 2023 1,235 9 View
I'm doing a 2D transient simulation of turbulent flow past a sharp-edged rectangular bluff body. I'm using a version of k-omega model for turbulence modeling. My objective is the time-averaged...
28 January 2023 1,073 3 View
Hello all, I've got a 2D simulation case in which the flow separates from the sharp leading edge of rectangular bluff body and reattaches to the wall some distance downstream. The main goal is a...
17 November 2022 9,149 4 View
Hi all, I am going to use either Ansys CFX or Ansys Fluent solver to simulate flow past a semi-submerged rectangular cylinder, as shown in Fig. 1. The main goal here is to achieve an accurate...
05 October 2022 9,864 4 View
Hi all, I'm doing a transient simulation of flow past a rectangular cylinder close to the free surface. As far as I'm concerned, the common practice is to discard the initial stages of the...
26 February 2021 1,604 3 View
I would appreciate any comments on the following problem. I need to calculate mean fields (e.g. pressure, velocity and vorticity), for which I activate Trn Stats tab in CFX-Pre. However, what I...
22 February 2021 9,253 7 View
Hi all, I'm planning to simulate flow past a floating body using CFD method with the main purpose of investigating its stability against hydrodynamic forces. A sketch of the problem is presented...
29 January 2021 6,078 5 View
I want to use standard sandpapers of different grit sizes to impart flow resistance to a surface. I am wondering how to convert the roughness of sandpaper to an equivalent sand-grain roughness. Is...
19 October 2020 9,664 3 View
I am conducting an experimental study in the hydraulic lab. I need to measure the real-time forces and torques that a fluid exerts on a 3D object freely moving in the flow field. Is it possible to...
26 June 2020 8,337 0 View
I can't understand from a physical standpoint how fluctuating velocity components in a turbulent flow lead to formation of spinning structures of different sizes known as eddies. Can anyone...
20 June 2020 764 68 View
In the problem of my interest, an airfoil is subjected to fluctuating flow forces associated with vortex shedding. The objective is to examine airfoil stability. In the literature, I saw drag and...
19 May 2020 5,487 1 View
As shown in the figure attached, the turbulent fluid flow around a floating (i.e. partially submerged) cylinder with a rectangular cross-section is to be modelled. Clearly, the forces and torques...
10 May 2020 9,483 2 View
I'm trying to develop a code to solve the stream function-vorticity equations using the Finite Element Method in order to simulate a 2D incompressible flow problem. I was wondering what the pros...
20 March 2020 4,251 6 View
What would be the implications of an unanticipated drastic rise in the water surface elevation in the inlet channel upstream of an inverted siphon with all the rest design parameters (e.g....
28 January 2020 5,243 8 View
Particle Image Velocimetry, or PIV, is a technique for flow visualization and velocity measurement. Also frequently encountered in the literature is 'Large-Scale Particle Image Velocimetry', or...
24 August 2019 8,160 8 View
