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Adding space charge density as a function of the radius

Posted 19.10.2023, 17:51 GMT-4 Electromagnetics, User Interface Version 6.1 2 Replies

Leonardo Paci
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Hello everyone, I need to add this formula for the space charge density:

where and with

Could you tell me how to do it please? In the figure I found where to write the formula of the space charge density, but I need to know how to write the spherical coordinate r.

2 Replies Last Post 20.10.2023, 03:43 GMT-4
Robert Koslover Certified Consultant
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Posted: 1 year ago 19.10.2023, 19:42 GMT-4
Updated: 1 year ago 19.10.2023, 19:42 GMT-4

Simply express r in Cartesian coordinates. E.g., see https://en.wikipedia.org/wiki/Spherical_coordinate_system

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
Simply express *r* in Cartesian coordinates. E.g., see https://en.wikipedia.org/wiki/Spherical_coordinate_system
Leonardo Paci
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Posted: 1 year ago 20.10.2023, 03:43 GMT-4

Thank you for your useful suggestion @RobertKoslover.

Thank you for your useful suggestion @RobertKoslover.

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