Philip Cardiff

[Philip Cardiff @phiiliipc]

@chenna1985 I cycle by this bridge and plaque on the way to work. I really need to find a reason to use quaternions … maybe beam elements

[Philip Cardiff @phiiliipc]

@HiroNishikawa Here are profile results of a 3D version of the cavity case using an OpenFOAM incompressible solver from a HPC benchmark project: pressure equation takes 67.9% of the time. Details at https://t.co/qzX9AJX56w

[Philip Cardiff @phiiliipc]

@HiroNishikawa I beleive that in many complex geometry RANS cases like this, the outer residuals do not converge per se, but stagnate (with noise), and the user checks the quantities of interest for statistical convergence in some sense, e.g., https://t.co/NwdJ1hNt9U is a tool for this

[Philip Cardiff @phiiliipc]

@HiroNishikawa As a concrete example, in the "motorbike" standard test case in OpenFOAM, which uses SIMPLE (+ kOmegaSST turbulence model), they perform 500 outer iterations (no outer convergence check), with relative tolerances of 0.1 for U/k/omega and 0.01 for p.
e.g., https://t.co/qR7VHEbINp

[BioEngineering in Ireland 31 @bini_irl]

🎉 Registration is now OPEN for the 31st Annual BinI Conference 2026!

💡Early bird rates until Nov 21, 2025: PhD/Postdoc: €150 PI: €220 (Standard rates: €200 / €270)

🔗 Register via RAMI: https://t.co/CRd8vxNuvS

#BinI2026

[Vikram Pakrashi @DSRL_UCDMECH]

A Finite Volume Simo-Reissner Beam solver for Moored Floating bodies: https://t.co/ZCv7ro1bMt
Important advancement by @ah_taran, with @SeevaniB,
led by @phiiliipc with Zeljko Tukovic.
#NexSys
@MaREIcentre @SEAI_ie @Researchirel @ERC_Research @ichec @UCDmechanics @UCD_Mech_Eng

[Philip Cardiff @phiiliipc]

@HiroNishikawa I am curious to see if you deal with curved boundaries

[Philip Cardiff @phiiliipc]

@HiroNishikawa I wonder if there is a definition for “very high order” or “very very high order” in the same way high order is >2.

>4 seems like very so maybe over 8 is very very 😜

[Philip Cardiff @phiiliipc]

@HiroNishikawa MATLAB is nice but it will become slow for 2D and 3D (like other non compiled languages) unless you adopt or avoid certain code features eg nested for loops are not good for speed in script languages

[Philip Cardiff @phiiliipc]

@HiroNishikawa What interesting features do spectral collocation method have relative to higher order finite volume or discontinuous Galerkin methods?

[Philip Cardiff @phiiliipc]

@HiroNishikawa How do you calculate the weights? Inverse distance to some power or something else?

[Philip Cardiff @phiiliipc]

@HiroNishikawa Exciting. For advection or diffusion or both?

[Philip Cardiff @phiiliipc]

@HiroNishikawa I wonder if something similar is possible for finite volumes

[OpenFOAM Workshop @of_ws]

Better late than never. The official group picture from the #ofw20

[OpenFOAM Workshop @of_ws]

The 20th #OpenFOAM workshop is started by this years organizer Mirza Popovac
#ofw20

[Philip Cardiff @phiiliipc]

@HiroNishikawa If you drop these cross derivative terms, will the order of accuracy be affected? 🤔

[Philip Cardiff @phiiliipc]

@RuaidhriOC @TwoCentsRugby

[Philip Cardiff @phiiliipc]

@HiroNishikawa Using a LSQ fit is interesting; I guess it becomes important for randomly perturbed grids

[Philip Cardiff @phiiliipc]

@HiroNishikawa Do you use a symbolic software for this?

[OpenFOAM Workshop @of_ws]

Don't miss out on the OpenFoam Workshop submission deadline: 30th of April! This is your chance to showcase your latest results, learn from industry experts, and connect with fellow colleagues. Make sure to submit on time to be part of this event, in beautiful Vienna, Austria