Verification and Validation of Simulations Against Holism

Verification and Validation of Crowd Simulations

To date no technique for validating crowd control models has been proposed. Usually subject matter experts “look at” the simulations and decide if what they are observing “appears” reasonable or not. One reason for this has been inability to gather quantitative data from either actual crowd footage or simulations of crowds. Since this problem is being solved by Kaup et al, it now becomes possib...

Verification and Validation of CFD Simulations

Non-standard bone simulations: Verification and validation

Standard methods for predicting bone’s mechanical response from quantitative computer-tomography(qCT) scans are mainly based on classical h-version Finite Element Methods (FEMs). This approach is often limited in terms of numerical accuracy and efficiency due to the low order polynomial approximation model, the need for segmentation, and the use of piecewise constant material properties assignm...

Verification and Validation for Turbulent Mixing Simulations

We present highlights from and supplementary material related to two recent studies giving verification and validation of a new approach to the simulation of turbulent mixing. The verification is based on (i) a mesh refinement study of a circular Richtmyer-Meshkov unstable flow, (ii) code comparison to a well documented code and (iii) comparison to a simple analytic model. The validation is bas...

Holism against Reductionism

In its relationship with society, contemporary medicine is beset by a deep tension. It is an old tension and familiar to all those who work in and study medicine. It has long been observed, for example, that the instrumental stance of scientific medicine can entail a loss of consideration for the person of the patient.1 The idealtype of the biomedical physician is a kind of applied scientist, g...