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InteractiveComputerGraphics / SPH-Tutorial

A course on Smoothed Particle Hydrodynamics (SPH)
https://sph-tutorial.physics-simulation.org/
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A_{ij} term clarification #5

Closed hporro closed 2 years ago

hporro commented 2 years ago

I think the term $A_{ij}$ in equations 22, 23, 24, 25 and 26 on the pdf refers to $A_i A_j$ (because [Bro85] has a $T_i T_j$ term instead), but it is not explicitly stated in the document. Maybe it would be good to clarify it in the pdf (and in the slides too), or I got it wrong? Is it a common abbreviation?

janbender commented 2 years ago

Hi, it seems that the explanation of A_ij is missing in the PDF. This means: A_ij = A_i - A_j (similar to Eq. 102). Brookshaw also defined it as difference (see e.g. Eq. 7 in the original paper), not as product.

Thanks for reporting that we will update it in the PDF.

hporro commented 2 years ago

ok, thank you!