Using log function for velocity

Using SimScale Fluid Flow / CFD
1

Hello,

When I define inlet velocities, I can use several functions like sin, cos, log etc. So here is this log referring to Log-to-base-10 or to-base-e?

I would assume that it is natural logarithm but log-to-base-10 is more commonly used. So I am a bit confused as to what base this is referred to?

Thanks

2

@ajaybharish - thanks for pointing this out, it is not so clear :confounded:

I believe it is log to base 10 but will need my colleague @gholami to confirm.

Best,
Anna

3

@ajaybharish, it’s natural logarithm (base e)

2 Likes
4

Glad I asked, thanks @gholami!

5

Thanks @AnnaFless & @gholami for the really swift clarification :slight_smile:

6

I see the solution here is that the logarithmic function is log10, but I think that the solution is further in the thread,:so it is loge. Correct?

Perhaps alo adjust/extend the text on these pages:

afbeelding
afbeelding484×746 30.3 KB

Furthermore, all the numbers, mathematical operators, trigonometric functions, exponential, and logarithmic functions are also available.