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Numerical simulation as an effective method for determination of oil-gas reservoirs has been widely used to evaluate the effects of different development schemes on the ultimate recovery of reservoirs with different types, different crude oil and petrophy
中文意思:
摘要数值模拟是确定油气藏采收率的有效方法,这一方法已广泛地应用来评价不同开发方式对不同类型、不同原油性质和储集层物性油藏最终采收率的影响,并定量给出不同开发方式下油藏的最终采收率。


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Numerical results show that for the data with either high or low signal to noise ratio (SNR), inversion solution depends weakly on regularization operators, while strongly upon regularization parameter.模拟表明,无论是高信噪比数据,还是低信噪比数据,反演的含水量在小正则化参数时,对模型约束的依赖性不大,主要受正则化参数影响。
Numerical results show that the method can localize and quantify the damage in truss structures precisely.数值试验表明,该方法对桁架结构的损伤可进行精确的定位和标定。
Numerical results show that the sliding structure using semi-active control not only has good vibration isolation effect, but also has less maximum slippage and less residual base displacement.对实例计算结果的分析表明,半主动控制下的滑移隔震结构不但具有较好的隔震效果,而且能有效地减小基底的最大滑移量及残馀位移。
Numerical results showed that the post-buckling behavior of a functionally graded plate was different from that of homogenous plate, the gradients of material properties and the boundary conditions played an important role in analyzing post-buckling behav结果表明,功能梯度板的过屈曲行为与各向同性均匀板有很大区别,材料的梯度性质和边界条件都对其有重要影响。
Numerical simulation and experimental study for injection molding and fiber orientation distribution of short fiber-thermoplastic polyure-thane elastomer composites were done.摘要对短纤维-聚氨酯弹性体复合材料的注射充模及纤维取向分布进行了数值模拟和实验研究。
Numerical simulation as an effective method for determination of oil-gas reservoirs has been widely used to evaluate the effects of different development schemes on the ultimate recovery of reservoirs with different types, different crude oil and petrophy摘要数值模拟是确定油气藏采收率的有效方法,这一方法已广泛地应用来评价不同开发方式对不同类型、不同原油性质和储集层物性油藏最终采收率的影响,并定量给出不同开发方式下油藏的最终采收率。
Numerical simulation by CFD was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation.It becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire sou运用CFD进行数字模拟,以了解纵向通风隧道内热烟气流的特性.通过模拟发现对火源进行模拟非常重要,热烟气流特性受火源位置的影响很大,并且对火源模拟方法很敏感.火源生成的火焰区是燃烧引起的化学反应区域.即使火源附近的木垛排列完好,也很难在考虑这些化学反应条件下模拟热生成区域.建议考虑纵向通风隧道内火焰形状并对它进行数字模拟.模拟结果与试验结果非常吻合.试验证明,在纵向通风隧道内,热烟气流从靠近墙体火源处顺风向隧道中心蔓延.数字模拟结果发现,火灾羽流造成的螺旋上升空气会在墙体和羽流之间形成一个涡流区.
Numerical simulation of the quasi-brittle fracture behaviors with the selected models was carried out at local constitutive level.在局部本构水平上,采用这些界面裂纹本构模型,对各种载荷工况下材料的准脆性断裂行为进行数值模拟。
Numerical simulation of the steady cavitating turbulent flow in the whole flow passage of a Kaplan turbine has been carried out by using a full cavitation model and a mixture two-phase flow model.摘要采用一种完整空化模型和一种混合流体两相流模型,对轴流式水轮机全流道内的定常空化湍流流动进行了数值模拟。
Numerical simulation of two dimensional examples shows the possibility of using this method to reconstruct flow patterns.对二维流场的数值模拟例子表明,这种流场重建的方法是可行的。
Numerical simulation results indicate that. (1) Cut-off model and simple damage accumulation model can qualitatively describe some physical essences of spall fracture, but remain apparent discrepancies from the experimental results due to the damage influ结果表明:简单最大拉伸应力模型和简单损伤累积模型能定性反映层裂的物理现象,由于忽略损伤对本构的影响,计算结果和实验有偏差,但模型要求参数较少,对于一些精度要求不是很高的工程问题,可以采用;从材料损伤断裂物理本质出发,采用微损伤统计方法得到的NAG模型和封加波损伤度函数模型,能很好地再现实测的自由面速度剖面,数值计算结果与实验吻合很好。
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