# Discussion Forum

## How to apply a pressure load distribution function on the surface?

Please login with a confirmed email address before reporting spam

Hello everyone: There is a rectangular plate, I need to apply a pressure load distribution function on the surface, the pressure load is related to the spatial coordinates (x, y), how to apply?

9 Replies Last Post Jul 8, 2022, 10:11 a.m. EDT

Please login with a confirmed email address before reporting spam

Posted: 1 month ago

Simply use this function p(x, y) in the pressure load BC on this surface.

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com

Please login with a confirmed email address before reporting spam

Posted: 1 month ago

Dear Edgar J. Kaiser: Thank you for your reply! AND I have another question. How to apply a pressure-distributed load on the surface, p(x,y), where x,y are specified discrete spatial coordinates. For example, x is 0 to 1 with a spacing of 0.1

Please login with a confirmed email address before reporting spam

Posted: 1 month ago

You can set up an interpolation function using your discrete values.

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com

Please login with a confirmed email address before reporting spam

Posted: 1 month ago

Dear Edgar J. Kaiser: Thank you for your reply！ I will try it your way Thanks again!

Please login with a confirmed email address before reporting spam

Posted: 1 month ago

Dear Edgar J. Kaiser: Suppose I use the interpolation function to import 3 columns of data, how can I make my first column of data be the independent variable space coordinate x, and the second column is the space coordinate y?

Please login with a confirmed email address before reporting spam

Posted: 1 month ago

It is all in the documentation for interpolation functions.

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com

Please login with a confirmed email address before reporting spam

Posted: 1 month ago

Specifically, please refer to the COMSOL Multiphysics Reference Guide, version 6.0, page 345 and following. All manuals are accessible through File > Help > Documentation.

Best,

Jeff

-------------------
Jeff Hiller

Please login with a confirmed email address before reporting spam

Posted: 1 month ago

thank you all！ I already know how to use interpolation functions and understand what the arguments mean. But now I encounter a new problem, the interpolation function cannot import data in complex form. How can this be resolved?

Please login with a confirmed email address before reporting spam

Posted: 1 month ago
-------------------
Jeff Hiller