j20232
commented
5 years ago - Background: there was no way to simulate dynamics of mixing two fluids which have different elasto-viscoplastic property; e.g. honey and mayonnaise
- Contribution: they introduce Herschel-Bulkley model to MPM to the simulate these fluids, and the output images are plausible
- In their previous study, it has been already shown to be suitable to use the model to simulate elastic fluids
- Approach:
- Measure the elasto-viscoplastic property of various fluids which have different mixing ratio with a rheometer(Movie)
- e.g.: Mayo:Honey = 100:0, 90:10, ..., 10:90, 0:100
- Formulate a blending model
- Fit the measurement results to the Herschel-Bulkley model and calculate model parameters
- Simulate the blended fluid with MPM
- Measure the elasto-viscoplastic property of various fluids which have different mixing ratio with a rheometer(Movie)
Summary
Abstract
The materials around us usually exist as mixtures of constituents, each constituent with possibly a different elasto-viscoplastic property. How can we describe the material property of such a mixture is the core question of this paper. We propose a nonlinear blending model that can capture intriguing flowing behaviors that can differ from that of the individual constituents (Fig. 1). We used a laboratory device, rheometer, to measure the flowing properties of various fluid-like foods, and found that an elastic Herschel-Bulkley model has nice agreements with the measured data even for the mixtures of these foods. We then constructed a blending model such that it qualitatively agrees with the measurements and is closed in the parameter space of the elastic Herschel-Bulkley model. We provide validations through comparisons between the measured and estimated properties using our model, and comparisons between simulated examples and captured footages. We show the utility of our model for producing interesting behaviors of various mixtures.
Author
∗ Authors contributed equally.
Journal/Conference
SIGGRAPH 2019
Link