Hello - can anybody help me on this please ? I am modelling a simple cylinder with laminar flow in ABAQUS CFD. I am using Reynolds number of 25 to simulate laminar flow with an inlet velocity of 1m/s using a fluid with density of 1 and kinematic viscosity of 0.012. I have worked out the length...
Hello - can anybody help me on this please ? I am modelling a simple cylinder with laminar flow in ABAQUS CFD. I am using Reynolds number of 25 to simulate laminar flow with an inlet velocity of 1m/s using a fluid with density of 1 and kinematic viscosity of 0.012. I have worked out the length...
According to ASME there is a calculation for flat head thickness (t) with the equation shown below. Is this applicable regardless of the ratio of head thickness to cylinder thickness ? I have a pressure vessel where the shell thickness of the cylinder is 100mm and the head thickness is 10mm...
Hi - I am modelling a cylindrical pressure vessel. I have carried out a mesh convergence study for smaller pressure loads so I'm happy with that. The material is elastic perfectly plastic. what I need to do now is apply internal pressure and find out what pressure would cause the vessel to...
Hi all - I'm going back to basics with my pressure vessel analysis and starting with ASME to calculate the acceptable operating pressure of a pressure vessel. My model is simple - flat head cylindrical. Length of cylinder 500mm, inside radius 254mm, cylinder shell thickness 100mm, flat head...
I have written an FEA model for a flat head pressure vessel,the head thickness is a lot less than the main body and it's a simple cylinder with a flat head, no valves etc. The FEA simulation is elastic-plastic; I believe I am meshing to a fine enough level as I have done convergence models etc...
Hi - I am trying to calculate the maximum pressure (or the pressure that would cause collapse of) a simple closed end cylinder. The cylinder thickness is 100mm however the end caps (which are flat) of the cylinder are 30mm. So I have two different thicknesses to consider. I've searched an can't...
Hi - I know that I can determine the coefficients for Cm and Cd using Keulegan Carpenter number but I have seen these equations for a Morison derivation of C and Cd - please see picture below - I'm an unsure though what is 'F' in the equation - what do I use for this please ? thanks,
Hi - I'm trying to calculate dynamic pressure, inertia and drag forces for an offshore riser that is connected to a submersible at the SWL. I have all the data that I think I need, wave period, length, amplitude,height, and I have calculated wave number (k) and wave speed (celerity) s..The depth...
Hi - I am modelling a flat head pressure vessel and I am writing a script to vary the thickness of the head of the pressure vessel.
I have managed to do this but I now need to determine what is the pressure that causes the pressure vessel to collapse. How do I determine this please
from the...
Hi - I am simulating a simple 3 point bend model in ABAQUS. It's for a sample steel specimen so the dimensions are 400mm long, 25mm wide and height of 44. The span of the supports is 300 mm.
I have successfully managed to get a good load/displacement plot using Static General analysis, but I'm...
