Resources

Author(s): Yifeng Yang and Guoxiong Wu When surface gravity waves propagate through the Marginal Ice Zone, they interact with numerous floating ice floes and affect the evolution of the polar environment. This work develops a method capable of modeling wave interaction with large arrays of arbitrarily shaped ice floes, which remains highly efficient even when the number of floes becomes exceedingly large. The results show how floe geometry and...

Author(s): Yuhang Zeng, Yan Wang, and Shitang Ke Numerical simulations of gas-liquid-solid (GLS) interactions play a significant role in many essential areas; however, several challenges related to boundary conditions and mass conservation remain. We present a GLS contact condition-enforced immersed boundary method for simulating multiphase flow problems with curved and moving boundaries. This method has been validated by simulating many challenging...

Author(s): Yiqian Xu, Kai Mu, Ran Qiao, Chengxi Zhao, and Ting Si Viscoelastic swirling jets hold significant potential for engineering applications, such as atomizers and combustors. This study carries out theoretical analysis and numerical simulations to investigate the role of elasticity in the instability of swirling jets. It is found that the elastic force could suppress jet instability. However, the suppressing effect is weakened as elasticity...

Author(s): Francesca Pelusi, Andrea Scagliarini, Mauro Sbragaglia, Massimo Bernaschi, and Roberto Benzi Understanding how emulsions transport heat under buoyancy forcing is essential in many natural and industrial flows, yet the role of interfacial physics remains poorly explored. Using mesoscale lattice Boltzmann simulations, we compare stabilized and non-stabilized liquid–liquid dispersions in Rayleigh–Bénard convection. While their global heat...

Author(s): Xiaoyue Zhang, Jin Zhang, and Le Fang Compressible turbulence exhibits complex mechanisms of energy exchange between kinetic and internal modes, yet their dependence on Mach number remains poorly understood. This work investigates two-dimensional compressible Taylor–Green vortex flows and reveals how Mach number governs the pathway of internal-kinetic energy transfer. We identify three stages of energy evolution and derive an analytical...

Author(s): Haoqi Hu, Wenli Chen, Hui Li, and Donglai Gao Dense suspensions of finite-size particles exhibit strongly heterogeneous modulation of wall-bounded turbulence. Using interface-resolved Direct Numerical Simulations over a wide range of particle inertia, we show that low-inertia particles homogenize near-wall flow topology and restore a symmetric tear-drop structure in the Q–R plane, whereas high-inertia particles generate asymmetric wake...

Author(s): Maziyar Hassanpour, Robert J. Martinuzzi, and Ugo Piomelli In turbomachinery and aerodynamics, wake-induced transition can trigger turbulence in boundary layers, yet how wake-separated boundary layer interactions drive transitions is not well understood. We use direct numerical simulations to reveal a hybrid transition pathway — a fusion of classical separated boundary layer instability and wake-driven bypass transition — in boundary...