In order to decrease the reflection of wave on the boundary, spongy condition was used on top boundary.
为了减少波在边界上的反射，顶部边界采用了海绵边界条件。
Mechanism of the oscillation instability is then illuminated in frequency domain by amplification at the artificial boundary and multi-reflection of wave motion in a finite discrete model.
根据波在人工边界的放大效应和在有限离散模型中多次反射的概念在频域内阐明了这一常见的振荡失稳的机制。
Rock mass elastic wave velocity is the synthesized reflection of rock quality, rock mass structure, and rock mass existing environment.
岩体弹性波速度是组成岩体的岩石性质、岩体结构、赋存环境的综合反映。
From flume experiments and aeroplane photographs of the coast, one can see the existence of sand wave induced by the reflection wall.
水槽实验和海岸高空照片资料上清楚的分辨出这种由反射壁效应产生的沙波的客观存在性。
The results demonstrate the cross correlation filter not only can suppress random noise in GPR signal but also confirm exactly the onset of reflection wave.
结果表明：应用该文所介绍的处理方法不但能有效压制探地雷达信号中的随机干扰而且能精确确定反射波的起跳点。
The surface wave is treated as interference wave in oil seismic prospecting, however, the Rayleigh wave, like the refraction and reflection waves, contains the information of underground medium.
在石油地震勘探中，面波一般是作为干扰波处理的，然而，瑞利面波也和折射波、反射波一样包含有地下介质的信息。
On the interface where there are non-horizontal fractures, reflection coefficient of P-P wave has more extrema to show complexity and to fail to directly indicate fracture strike.
在由非水平裂隙构成的界面上，P-P波反射系数会出现更多的极值而变得较为复杂，且不能直接指示裂隙走向。
By analyzing the reflectivity spectrum and reflection wave spectrum of thin beds, we put forward a new method for thickness determination of the thin beds.
作者通过研究地层厚度变化对地层本身的反射系数谱及反射波频谱的影响规律，寻找到了一种新的计算薄层厚度的方法。
In numerical wave simulation of finite difference for acoustic wave equation, due to the limitation of computer model, there inevitably exists strong artificial boundary reflection.
在声波波动方程有限差分波场数值模拟中，由于计算模型的限制，导致很强的人为边界反射的产生。
It is a difficult point to teach the students solving the wave equation on finite interval by the reflection law of the wave.
用波的反射原理求解有限区间上的波动方程是数学物理方程中的基本内容，也是教学中的难点内容。
An experimental setup is established to demonstrate evanescent wave of total internal reflection.
建立了一套演示光全内反射产生的消逝波的实验装置。
The results obviously demonstrate wave diffraction in harbor on condition of boundary reflection. Distribution of wave field in harbor is relatively appropriate.
结果比较清楚地反映出在考虑边界反射条件下波浪绕射情况，港内波浪场的分布比较合理。
The reflection and transmission of elastic wave in a multilayered structure composed of elastic base covered with magneto-electro-elastic materials were fully investigated.
研究了弹性基底上覆盖电磁弹性材料组成的多层结构中弹性波的反射与透射系数问题。
However, the use of convolution model is to deduce recursion formula of the reflection for the converted wave.
而利用褶积模型理论解决转换波问题的关键是建立转换波反射系数递推公式。
The bent shock wave is reflected at the wall. As the flow speed changes, two kinds of shock reflection have been observed.
弯曲的激波与壁面进一步作用后发生反射，由于波前气流速度不同，这种反射存在规则反射和马赫反射两种类型；
Then the incident wave, pile-toe reflection wave and flaw reflection wave can be judged by the position of singularity.
由信号的奇异点位置很容易确定入射波、缺陷反射波、桩底反射波位置。
The equation of lateral disturbance is used to analys the problem. The effects on the propagation and reflection of stress wave are taken into account.
用幂级数解法，理论上给出了该问题的级数解，同时考虑了应力波传播及反射对屈曲的影响。
The transmission of the sky wave is realized by the reflection from ionosphere, especially after reflecting many times, to achieve global communication.
天波的传播是利用电离层的反射来实现的，尤其是多次反射后可以实现全球通信。
This paper deals with the essence of the reflection coefficient of planar wave in terms of acoustic and elastic media in the single-boundary and multilayered medium.
本文讨论了声学介质与弹性介质在单界面和多层介质情况下平面波反射系数的实质。
The absorbing property of radar absorbing material is usually expressed by the power reflection coefficient of the absorbing material toward the electromagnetic wave.
雷达吸波材料的吸波性能通常以吸波材料对电磁波的功率反射系数来表示。
The electromagnetic sounding data is the synthetic reflection of the electromagnetic wave about the underground geo-objects.
电磁测深数据是地下地质体对电磁波传输特性的综合反映。
At the same time, the reflection characters of strain wave and displacement wave are analyzed at the fixed end, free end and elastic bearing end.
同时，本文分析了位移波和应力波在固定端、自由端和弹性支承端的反射特点。
It also introduce the causing of shock wave in the water and the gas, and its spread in blasting hole, as well as its reflection and transmission and effects of rock.
就水和空气不偶合装药爆破冲击波的产生，及在炮孔内介质中的传播、反射和透射以及对周围岩石的作用过程都进行了详细的介绍。
Then, the positions of the incident wave, pile-toe reflection wave and flaw reflection wave can be determined by the position of singular point.
然后根据奇异点位置确定入射波、缺陷反射波、桩底反射波位置。
We also find the phase jump of electromagnetic wave of surface reflection when the generalized matching law is satisfied.
在满足广义匹配规律时，表面反射波位相发生突变。
Finally, the computation of wave reflection and diffraction in the Dalian Harbor indicates that the present method can be widely used for computing the wave field in harbors.
对大连港区内的波浪折射绕射进行了计算，表明本方法可以应用于实际港口的波浪场计算中。
The responding signal of the receiving transducer under inspiring by the input supersonic and its reflection wave in experiment of sound velocity measurement is analyzed.
对声速测定(超声)实验中接收换能器在入射波和反射波激励下，换能器的响应信号进行了分析。
The blast furnace raceway formation under the intensive coal injection by measurement of micro wave reflection gunned through a tuyere is discussed.
通过利用风口测量枪进行的微波反射测量方法讨论了大煤粉喷吹量条件下高炉风口回旋区的形成。
The method of calculating the reflection point positions and path clearance of the electric wave at the level ground and mountainous region for the microwave relay communication is described.
本文叙述在微波中继通信中，确定和计算电波在平坦地面和起伏山地的反射点位置及路径余隙的方法。
The method of calculating the reflection point positions and path clearance of the electric wave at the level ground and mountainous region for the microwave relay communication is described.
本文叙述在微波中继通信中，确定和计算电波在平坦地面和起伏山地的反射点位置及路径余隙的方法。
应用推荐