{"id":366501,"date":"2024-05-11T13:24:11","date_gmt":"2024-05-11T13:24:11","guid":{"rendered":"\/forum\/forums\/topic\/flow-through-heater\/"},"modified":"2024-05-11T13:24:11","modified_gmt":"2024-05-11T13:24:11","slug":"flow-through-heater","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/flow-through-heater\/","title":{"rendered":"Flow Through Heater"},"content":{"rendered":"

Hi,<\/p>\n

I want to know if I am using the best setup for the analyses of my heater. This heater is a pipe where the power density is applied to the outer surface of the pipe and water runs inside of it. I have a requirement that I need to use 27kW, the temperature in the inlet 5ºC and a flow rate of 20L\/min. In a way to find out the outlet temperature. Note: Inside the pipe, I got a spiral in order to achieve a higher temperature. <\/p>\n

<\/p>\n

Then, I did the mesh in the Fluent and applied an inflation between the fluid and the inner surface of the pipe, where I applied the last ratio with the first layer size (for a desired Y+=1). And got a quality of (max. skewness: 0,92 ; min. orthogonal: 0,07) <\/p>\n

<\/p>\n

For the Setup<\/p>\n

    \n
  1. I am using the k-omega and the SST model, are the options good or should i need to tick more boxes? 
    <\/li>\n
  2. Then i applied the Boundary Conditions, Inlet: 5ºC, Mass flow rate: 20L\/min and 27kW (35W\/cm2)<\/li>\n<\/ol>\n

    <\/p>\n

    For the solution:<\/p>\n

      \n
    1. I am using the pressure-velocity Couple method<\/li>\n<\/ol>\n

      <\/p>\n

      2. And the controls this (i dont know if i have to change anything) 
      <\/p>\n

      3. I use this residual and some reports to make sure the solution converge<\/p>\n

      <\/p>\n

      4. In the calculation, should I run simulation in a steady regime or a transient regime? 
      <\/p>\n

       <\/p>\n

      Thanks<\/p>\n","protected":false},"template":"","class_list":["post-366501","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t