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make hole
Posted 2010年12月20日 GMT-5 05:53 Version 4.0 1 Reply
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Hi every one
I work on a micro reactor and I want to make a small hole on wall side of
reactor. I tried but when make contact the hole to a capillary wall side, the hole
is blocked.
Does anyone know how to handle this?
Sincerely,
I work on a micro reactor and I want to make a small hole on wall side of
reactor. I tried but when make contact the hole to a capillary wall side, the hole
is blocked.
Does anyone know how to handle this?
Sincerely,
1 Reply Last Post 2010年12月21日 GMT-5 02:36
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Posted:
1 decade ago
Hi
if you add a very small geoemetrical object to a large model, you must check that the realtive tolerance values are large enough (see geometry node) if you have a 1[m] model and add a 1[um] hole iwt a relative tolerance of 1e-5 the hole will be ignored s its smalle than 1[m]*1E-5=10[um], set the tolerance to 1E-7 and it should do.
On the other side nite tha having mesh relations above 1:10'000 makes the model often delicate to solve/converge o even difficult to mesh (at least in automatic mode)
--
Good luck
Ivar
if you add a very small geoemetrical object to a large model, you must check that the realtive tolerance values are large enough (see geometry node) if you have a 1[m] model and add a 1[um] hole iwt a relative tolerance of 1e-5 the hole will be ignored s its smalle than 1[m]*1E-5=10[um], set the tolerance to 1E-7 and it should do.
On the other side nite tha having mesh relations above 1:10'000 makes the model often delicate to solve/converge o even difficult to mesh (at least in automatic mode)
--
Good luck
Ivar