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grad div A - weak expression?

Posted 2025/06/25 11:53 GMT-4 Equation-Based Modeling 0 Replies

Sebastian Müller
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Hi!

When having 3 dependent vector-components: Ax, Ay, Az. Is

(Axx+Ayy+Azz)*(test(Axx)+test(Ayy)+test(Azz))

the correct weak expression for grad div A?

Or splitted in 3 input-fields:

  • (Axx+Ayy+Azz)*test(Axx)
  • (Axx+Ayy+Azz)*test(Ayy)
  • (Axx+Ayy+Azz)*test(Azz)

Nice greetings

0 Replies Last Post 2025/06/25 11:53 GMT-4
COMSOL Moderator

Hello Sebastian Müller

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