Temperature Oscillations in a Compartmentalized Bidisperse Granular Gas

by: Meiying Hou, Hongen Tu, Rui Liu, Yinchang Li, Kunquan Lu, Pik Y Lai, CK Chan

Physical Review Letters, Vol. 100, No. 6. (2008)

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A granular clock is observed in a vertically vibrated compartmentalized granular gas composed of two types of grains with the same size. The dynamics of the clock is studied in terms of an unstable evaporation or condensation model for the granular gas. In this model, the temperatures of the two types of grains are considered to be different, and they are functions of the composition of the gas. Oscillations in the system are driven by the asymmetric collisions properties between the two types of grains. Both our experiments and model show that the transition of the system from a homogeneous state to an oscillatory state is via a Hopf bifurcation.

@article{citeulike:2547980, abstract = {A granular clock is observed in a vertically vibrated compartmentalized granular gas composed of two types of grains with the same size. The dynamics of the clock is studied in terms of an unstable evaporation or condensation model for the granular gas. In this model, the temperatures of the two types of grains are considered to be different, and they are functions of the composition of the gas. Oscillations in the system are driven by the asymmetric collisions properties between the two types of grains. Both our experiments and model show that the transition of the system from a homogeneous state to an oscillatory state is via a Hopf bifurcation.}, author = {Hou, Meiying and Tu, Hongen and Liu, Rui and Li, Yinchang and Lu, Kunquan and Lai, Pik Y. and Chan, C. K. }, citeulike-article-id = {2547980}, doi = {10.1103/PhysRevLett.100.068001}, journal = {Physical Review Letters}, keywords = {2008, grain, people}, number = {6}, posted-at = {2008-03-18 00:52:25}, priority = {2}, publisher = {APS}, title = {Temperature Oscillations in a Compartmentalized Bidisperse Granular Gas}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000100000006068001000001\&idtype=cvips\&gifs=yes}, volume = {100}, year = {2008} }

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TY - JOUR ID - citeulike:2547980 L3 - citeulike-article-id:2547980 TI - Temperature Oscillations in a Compartmentalized Bidisperse Granular Gas JF - Physical Review Letters VL - 100 IS - 6 PB - APS N2 - A granular clock is observed in a vertically vibrated compartmentalized granular gas composed of two types of grains with the same size. The dynamics of the clock is studied in terms of an unstable evaporation or condensation model for the granular gas. In this model, the temperatures of the two types of grains are considered to be different, and they are functions of the composition of the gas. Oscillations in the system are driven by the asymmetric collisions properties between the two types of grains. Both our experiments and model show that the transition of the system from a homogeneous state to an oscillatory state is via a Hopf bifurcation. KW - 2008 KW - grain KW - people AU - Hou, Meiying AU - Tu, Hongen AU - Liu, Rui AU - Li, Yinchang AU - Lu, Kunquan AU - Lai, Pik AU - Chan, CK PY - 2008/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000100000006068001000001&idtype=cvips&gifs=yes ER -

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