{"id":54612,"date":"2021-04-23T11:48:41","date_gmt":"2021-04-23T11:48:41","guid":{"rendered":"\/forum\/forums\/topic\/questions-regarding-the-field-simulation-methods-of-ansys-q3d-extractor\/"},"modified":"2021-04-23T11:48:41","modified_gmt":"2021-04-23T11:48:41","slug":"questions-regarding-the-field-simulation-methods-of-ansys-q3d-extractor","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/questions-regarding-the-field-simulation-methods-of-ansys-q3d-extractor\/","title":{"rendered":"Questions regarding the field simulation methods of ANSYS Q3D Extractor"},"content":{"rendered":"<p>During my incorporation into ANSYS Q3D Extractor some questions regarding the solution process arose. In the following, those questions are further explained.nAccording to the Figure on Q3D Extractor Help 21 ? 3, Q3D Extractor divides the solution into a DC-Region, a Transition Region and an AC-Region. In the DC Region the current is evenly distributed along the conductors crosssection. The documentation says that this assumption is valid for frequencies, where the skin depth is greater or equal than the conductors thickness.nIn the AC Region the magnetic field is completely displaced from the conductor (no inner inductance any more?!, solely magnetic flux through surface has a contribution) and current flows only on a thin layer (resistance proportional to the square root of the frequency). It is said, that this assumption should be fulfilled when the skin depth is less or equal to one thirds of the conductors thickness.nThe solution for frequencies in the Transition Region is calculated by the equivalent circuit shown on Q3D Extractor Help 21 ? 4. Thereby, a simple interpolation is utilized.nDoes that mean, that the difference between AC Inductance and DC Inductance equals the inner inductance?nFor instance, we want to achieve a solution of the inductance and resistance in a specific frequency range. Lets say our conductor is 100?m thick. According to the procedure described above, we should be fine to calculate the DC-Inductance and the AC-Inductance at a frequency where the skin depth is 33?m. This is enough information to approximatly determine the frequency-dependent inductance.nVice versa does that mean we cannot obtain a more exact solution in the transition region when using Q3D Extractor? And, if so, what influence does the choice of the solution frequency have?.Capacitance and Conductance is determined by an electrostatic simulation. nThe reason for the frequency dependence of the capacitance is the frequency dependence of the dielectric materials?n<\/p>\n","protected":false},"template":"","class_list":["post-54612","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["26948"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["????"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["1282"],"_bbp_subscription":["233801"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["54612"],"_bbp_forum_id":["27793"],"_bbp_engagement":["23","188586"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["232006"],"_bbp_last_active_id":["232006"],"_bbp_last_active_time":["2021-08-12 16:41:59"]},"test":"ansq3dsf"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/54612","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/54612\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=54612"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}