1)elliptical tube椭圆管
1.Research on the flow across elliptical tube tanks with the finite-element method;基于有限元方法的横掠椭圆管束流动特性研究
2.Numerical analysis of fluid flow and heat transfer characteristics on elliptical tube with rectangular fins of air cooler椭圆管矩形翅片空冷器流体流动与传热特性数值分析
3.Because of smaller cross-sectional area of elliptical tube, the thickness of the cooling stave will be reduced and cooling water consumpti.计算结果表明:冷却水管由圆管改为椭圆管后,冷却壁热面最高温度和热应力升高不大,为冷却水管由圆形改成椭圆形提供了理论依据,由于椭圆水管截面积减少,就可以减少壁体厚度和大量节约冷却水量,从而达到降低炼铁成本的目的。
英文短句/例句
1.Research on the Structure Design and Simulation of New Oval LED;新型椭圆管LED的结构设计与仿真研究
2.Study of Simple Design Method of Ellipse Shoulder Forming Device椭圆管翻领成型器简易设计方法研究
3.Numerical Simulation of Laminar Flow and Heat Transfer Characteristics in Elliptical Tubes椭圆管内层流流动与换热的数值研究
4.Characteristics research of rectangular finned elliptical tubes and analysis of field synergy矩形翅片椭圆管束性能研究及场协同分析
5.Numerical investigation of heat transfer in tube bundle cross-flow for elliptic and egg-shaped tubes横掠蛋形和椭圆管束对流换热的数值模拟研究
6.elliptical iris waveguide椭圆形光圈式波导管
7.Resembling an ellipse in shape;elliptical.椭圆形的形状类似椭圆的，椭圆的
8.NUMERICAL STUDY ON FLOW AND HEAT TRANSFER IN A ELLIPTICAL AND CIRCULAR FINNED TUBE椭圆形和圆形翅片管流动与传热的数值研究
9.Circle flange forming by prefabricated elliptical hole in stainless steel elbow不锈钢弯管上用预制椭圆孔翻边成形圆孔
10.ellipsoidal head椭球体的封头, 椭圆封头
11.Deviation from perfect circular or spherical form toward elliptic or ellipsoidal form.椭圆形，椭圆球从正圆或球形向椭圆或椭圆球的偏离
12.Of, relating to, or having the shape of an ellipse.椭圆的椭圆形的、与椭圆形有关的或具有椭圆形的
13.eliptical time base椭圆时基(扫描)线
14.Oval metallic ring gaskets for steel pipe flange jointsGB/T9128.2-1988钢制管法兰连接用椭圆形金属环垫
15.Application of Single-column Elliptic Steel-tube Pole in Transmission Lines单柱椭圆形钢管杆在输电线路中的应用
16.The Derivation of Characteristics of the Venturi Tube with Oval Adjusting Valve椭圆调径挡板文氏管调节特性曲线方程的推导
17.A Dynamic Key Escrow Scheme Based on Elliptic Curve Cryptosystem;基于椭圆曲线密码体制的动态密钥托管方案
18.The Application of Cooling Machine based on Elliptical Wing Tube in Ethylene Industry;椭圆翅片管空冷器在乙烯工业中的应用
相关短句/例句
elliptic tube椭圆管
1.Numerical simulation on flow and heat transfer characteristics of rectangular-wing elliptic tube with interrupted holes开孔矩形翅片椭圆管流动及传热特性的数值模拟
2.Heat transfer characteristics and flow behaviors of the elliptic tube with different axis ratio a/b are numerically studied via an implicit finite difference method.利用隐式有限差分法,对横掠不同轴径比a/b情况下的椭圆管换热及流动特性进行了研究。
3.In this paper, the heat transfer of a two-dimensional steady-state uncompressible fluid flow across the elliptic tubes was studied .本文分析了二维稳态不可压缩流体横掠椭圆管束的强迫对流换热问题。
3)oval tube椭圆管
1.In this paper, 3-D numerical simulations for air-side performance of fin-and-oval tube heat exchanger with longitudinal vortex generators(LVG) and fin-and-tube heat exchanger were performed.对带纵向涡发生器的椭圆管翅片换热器和圆管翅片换热器的空气侧表面的换热和流动特性进行了三维数值模拟。
2.There are two common ways to determine this equivalent round tube: one is to make the cross-sectional area of the round tube equal to that of the oval tube and the other is to make the perimeter of the round tube equal to that of the oval tube.椭圆管翅式换热器的翅片效率工程上通常是将其转换为圆形翅片管来计算。
3.Three-dimensional numerical simulation was performed for heat transfer and flow characteristics of fined oval tube heat exchangers with longitudinal vortex generators(LVGs).对带纵向涡发生器的椭圆管翅片换热器空气侧表面的换热和流动特性进行了三维数值模拟。
4)elliptic cylinder椭圆管
1.Experiments have been performed, in which heat-mass transfer analogy and the naphthalene sublimation technique were used, to investigate the local and overall heat transfer characteristics and flow behaviors of an elliptic cylinder of axis ratio 1 6∶1 in crossflow of air.0椭圆管的局部及平均换热特性以及流阻进行了实验研究。
2.Heat transfer characteristics and flow behaviors of elliptic cylinders with different axis ratio k in crossflow are investigated experimentally.对横掠不同长径比的椭圆管的换热和流动特性进行了研究。
5)elliptical fin-elliptical tube椭圆翅片椭圆管
6)oval pipe椭圆形管
1.The forming method of oval pipe is introduced and the observed problem during strips transformation of different grade material with two different forming method.介绍了椭圆形管的成型方法,并用两种不同的成型方式,说明了不同材质的带材变形时应注意的问题。
延伸阅读
椭圆函数与椭圆积分椭圆函数与椭圆积分Elliptic function and integral 叮写成R，[丫(。口+·了’(。RZ「犷(二)」的形式，其中R，(二，)，尺:(二1)为二，的有理函数，亦可用夸函数及。函数表示。如遇退化情况，则得初等函数。 日函数函数断，旧一乙二八成吧一，)(12)其中:固定，且lm:>o，这是:的偶的整函数。它具有周期1，当将v增加:时，它要乘上‘汗‘今+”，在点:1一刀，十()，十1/2):()I，，，，为整数)处它有单零点。经常讨论的夕函数有四个0，(.一、ilJ(叶·旧司:+引， 一戈一’2厂’ __、。11+rl姚‘.’一洲‘、“’夕(t，十飞一-)·夕3(:)=0(:1+l/2)，夕、(:，)=夕(:1)。(13)夕(才/2，二l)满足偏微分方程刁2夕/丙2一妙/决，并有一个简单的拉普拉斯变换。椭圆函数与椭圆积分可用夕函数表示，对维尔斯特拉斯函数而言，:一。‘/、，对雅可比函数或勒让德规范形式的椭圆积分而言，:-;K’/K。 变换理论一个椭圆函数的周期集可用各种原始周期对来描述。由一对原始周期到另一对的改变叫做椭圆函数或椭圆积分的变换。原始周期的商:便经受了一个单应变换:一(二+l，)/(二+d).其中。、.乃，:，d为整数，而D一、d一/)’为正，D叫做该变换的次数。全体一次变换组成一个模群。这些变换的研究是很有理论意义的，对数论有用，并用于对椭圆函数的数值计算。它也和椭圆模函数的研究有关，后者指具有下列性质的解析函数据f(:)，只要:与i被模群的变换连系着、那么f(r)便与:(:)代数地联系着。参阅‘傅里叶级数与傅里叶积分”(Fourier series and integrals)条。 [埃尔德里(A.Erdelyl)撰」E(k)一E(二2，k)分别叫做第一种与第二种完全椭圆积分，刀一(1一kZ)’2为补模数.又K‘一K‘(h)一F(二/2，k‘)，E‘=E，(k)=F(二/2，k，)。完全椭圆积分作为走的函数时满足二阶线性微分方程，并为居的超几何函数。它们还满足勒让德关系式，KE‘+K’E+KK‘一二/2这是关于k的恒等式。 周期与奇点椭圆积分是多值函数。I的任何两个确定值的差都是某些实数或复数，即所谓周期的整倍数之和。E，F与H都是复变量、一S、n甲的多值函数。这三个函数都在二一士1，士k‘处有支点，而H还在艾一士l)l一’2处有支点。F的周期为4K与2;K‘，E的周期为4E与21(K‘一E‘)由J二o蕊k毛l时完全椭圆积分是实的，故第一(第二)个周期便叫做实(虚)周期。虽则E与F是二一的多值函数，但如果把沿同样路径并对。(l，习采取同样的值而积分得的E，F作为对应值，则君是F的单值函数。
