How to define varied temperature on a specific surface in HW CFD?
Hi experts,
I want to define varied temperature according to time/ timestep using Surface Initialize function.
In tab Curve fit variable, I can not find time/ timestep.
Anyone please help instructing me using this tool.
Thanks in advanced!
Best Answer
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The 'Initialize' set is to set the initial conditions for the first time step - then things move on from there as the equations are solved.
If you're trying to define boundary conditions, where the temperature changes in time, you would do that with a multiplier instead.
When you're in the boundary condition definition panel, you'll see the icon with f(t) and a pull-down to the right. You can either select an existing multiplier, or select the 'Create New' to define a new multiplier - as a function of time or time step.
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Altair EmployeeAnswers
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The 'Initialize' set is to set the initial conditions for the first time step - then things move on from there as the equations are solved.
If you're trying to define boundary conditions, where the temperature changes in time, you would do that with a multiplier instead.
When you're in the boundary condition definition panel, you'll see the icon with f(t) and a pull-down to the right. You can either select an existing multiplier, or select the 'Create New' to define a new multiplier - as a function of time or time step.
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acupro_21778 said:
The 'Initialize' set is to set the initial conditions for the first time step - then things move on from there as the equations are solved.
If you're trying to define boundary conditions, where the temperature changes in time, you would do that with a multiplier instead.
When you're in the boundary condition definition panel, you'll see the icon with f(t) and a pull-down to the right. You can either select an existing multiplier, or select the 'Create New' to define a new multiplier - as a function of time or time step.
Thank you a lot!
I found it and successfully applied.
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James Lewis said:
Thank you a lot!
I found it and successfully applied.
Another point to clarify - when you give the value in the main boundary condition panel, then apply the multiplier to that, the resultant value is the multiplier * the main value. Sometimes to avoid confusion we give a value of 1 to the main BC value, then define the multiplier to have the actual desired values.
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