范氏气体准静态开放式系统与气枪子波模拟

摘要

Generally,the open quasi-static thermodynamic system in the conditions of ideal gas is used in the single air-gun wavelet model of Van der waals gas.In this paper,a new equation of the open quasi-static thermodynamic system in the condi-tion of Van der waals gas is given.A single air-gun wavelet model of Van der waals as based on the new equation and the bub-ble oscillation theory is established.It can be solved by the fourth order Runge--Kutta method.With the experiment,the result shows that the modeling wavelet is very close to the measured wavelet.%在范氏气枪模型中，理想气体准静态开放式系统方程通常被直接应用在范氏气体条件下，从而引起模拟结果的偏差。这里详细推导了范氏气体条件下准静态开放式热力学系统方程，并结合气泡振荡方程，应用四阶 Runge-Kutta 方法进行子波模拟。经过与实际数据对比分析，得到比原范氏气枪模型更接近实测子波的结果。