Personal Data


Present Position and Ph.D Advisor

Education


Grants

Work Activities

Turbulence enhancement in coagulation

Abstract: Smoluchowski model is introduced from a stochastic particle system. A gas-kinetic theory on coagulation is recovered. Insight on mass displacement due to turbulence is shown numerically. Based on joint works with Franco Flandoli and Ruojun Huang.

Closed Analytic formula for the turbulent rate of collision

Abstract: Smoluchowski model is introduced from a stochastic particle system. A one-point and two-point motion statistics are studied to recover a gas-kinetic theory on coagulation. Low inertial regime is obtained trhough correction quantity due to the displacement of particles in turbulent flow. 

On the refined self-similarity hypothesis.

Abstract: On the refined self-similarity hypothesis, Lagrangian statistics and Eulerian statistics of the dissipation rate are studied for DNS of forced 3dNS equations.

Particle Aggregation Under Turbulent Flows 

Abstract: Smoluchowski model is introduced from a stochastic particle system. A gas-kinetic theory on coagulation is recovered. Insight on mass displacement due to turbulence is shown numerically. Based on joint works with Franco Flandoli and Ruojun Huang.

Averaged Dissipation of Transport Noise with Levy integral
Abstract: In one spatial and arbitrary jump dimension, the averaged solution of a Marcustype SPDE with pure jump Lévy transport noise satisfies a dissipative deterministic equation involving a fractional Laplace-type operator. We present numerical simulations showing that dissipation occurs for the averaged solution, with a behavior like a fractional Laplacian.

Abstract: We presented the construction of transport noise as in the fashion of Flandoli et all. Focusing on connection to SALT and diffusivity behavior of the corrector term. Numerical simulation on the torus are presented and suggestions for future question and analysis are discussed.

Approximation of the Lévy-driven stochastic heat equation on the sphere 

Abstract: The stochastic heat equation on the sphere driven by additive Lévy random field is approximated by a spectral method in space and forward and backward Euler-Maruyama schemes in time, in analogy to the Wiener case. New regularity results, strong and weak convergence rate are proven. Numerical simulations confirm the theoretical results. 

Other Activities (old and new)