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Bubble shape oscillations and the onset of sonoluminescence.
An air bubble trapped in water by an oscillating acoustic field undergoes either spherical or nonspherical pulsations depending on the strength of the forcing pressure. Two different instability… Expand
Crossover from high to low Reynolds number turbulence.
- T Lohse
- Physics, Medicine
- Physical review letters
- 18 January 1994
The Taylor-Reynolds and Reynolds number (Re lambda and Re) dependence of the dimensionless energy dissipation rate c epsilon = epsilon L / u31,rms is derived for statistically stationary isotropic… Expand
Sound scattering and localized heat deposition of pulse-driven microbubbles
- Hilgenfeldt, T Lohse, Zomack
- Materials Science, Medicine
- The Journal of the Acoustical Society of America
- 26 May 2000
The sound scattering of free microbubbles released from strongly driven ultrasound contrast agents with brittle shell (e.g., Sonovist) is studied numerically. At high peak pressure of the driving… Expand
Bottleneck effects in turbulence: Scaling phenomena in r versus p space.
We (analytically) calculate the energy spectrum corresponding to various experimental and numerical turbulence data analyzed by Benzi et al. We find two bottleneck phenomena: While the local scaling… Expand
Mechanisms for stable single bubble sonoluminescence.
A gas bubble trapped in water by an oscillating acoustic field is expected to either shrink or grow on a diffusive time scale, depending on the forcing strength and the bubble size. At high ambient… Expand
Periodically kicked turbulence
- T Lohse
- Physics, Medicine
- Physical review. E, Statistical physics, plasmas…
- 18 August 2000
Periodically kicked turbulence is theoretically analyzed within a mean-field theory. For large enough kicking strength A and kicking frequency f the Reynolds number grows exponentially and then runs… Expand
Finite size corrections to scaling in high Reynolds number turbulence.
We study analytically and numerically the corrections to scaling in turbulence which arise due to finite size effects as anisotropic forcing or boundary conditions at large scales. We find that the… Expand
Developed Turbulence: From Full Simulations to Full Mode Reductions.
Developed Navier-Stokes turbulence is simulated with varying wave-vector mode reductions. The flatness and the skewness of the velocity derivative depend on the degree of mode reduction. They show a… Expand
Acoustic Energy Storage in Single Bubble Sonoluminescence.
Single bubble sonoluminescence is understood in terms of a shock focusing towards the bubble center. We present a mechanism for significantly enhancing the effect of shock focusing, arising from the… Expand
Fourier-Weierstrass mode analysis for thermally driven turbulence.
The eddy size and temperature distribution in the inertial subrange of turbulent Rayleigh-Benard flow at a Rayleigh number Ra [approx equals] 1011 is calculated from the Boussinesq equations.… Expand