Book Review

Books reviewed:
Ira A. Jackson and Jane Nelson, Profits with Principles: Seven Strategies for Delivering Values with Values .     

A TVD SCHEME FOR INCOMPRESSIBLE FLOW COUPLED WITH DIFFERENT TURBULENCE MODLES ON A GROUND- MOUNTED SQUARE-RIB FLOW

A finite-difference Total Variation Diminishing (TVD) numerical simulation model for coupling the Reynolds Averaged Navier-Stokes (RANS) equations, pressure-relative continuity equation and various k-εturbulence models was developed to solve the incompressible flow based on the pseudo-compressibility method. The hyperbolicity of all these equations was studied and the discretization of the fully coupling equations with all the primal variables and source terms were made in this article. Numerical simulation for modeling the flow around a ground-mounted square rib was implemented and validated by comparing with the published wind tunnel experimental data. It is shown that such a numerical simulation method with a proper turbulence model has a very good accuracy to simulate the flow around a surface-mounted rib. It is concluded that the Renormalization Group (RNG) and Chen-Kim k-εturbulence models have much better ability to predict the characteristics of the vortex structure and flow separation than the standard k-εmodel.     

昆明掌鸠河引水供水工程岔河倒虹吸设计

岔河倒虹跨沟长度2 106.4 m,最大水头450 m,是掌鸠河引水供水工程中关键和具有代表性的一段工程。工程区地形陡峻,地质条件复杂,地震设防烈度高达Ⅷ度,因此对工程的布置和结构设计进行了详细研究。创新型结合井布置,可实现"首部控制,分段降低隧洞压力,工程运行灵活,造价低"的目标。明敷钢管道首次在高地震区应用了下支承环结构和板式连续支墩。运行实践证明,工程的设计理念、设计方案较为合理,但在管型选择、进出口段和陡坡镇墩的设计方面有待改进。     

Numerical analysis of the burning of pulverized coal with different thermal properties in the furnace of a BKZ-420-140-2 boiler

Results are presented from numerical simulations of mass-transfer and combustion processes in the furnace of a BKZ-420-140-2 boiler using the applied program package FIRE 3D with replacement of the design ékibastuz coal by Kuznetsk grade D hard coal and Irsha-Borodino grade 2B lignite.     

Use of hydraulicking for clearing small rivers

Conclusions  

Problems of the design, construction, and operation of depots with anti-seepage protection for the storage of industrial wastes

Conclusions  1. Existing recommendations on the design, construction, and operation of waste dumps for industrial establishments do not correspond to requirements of nature-preserving legislation; this gives rise to the need for development of a unified regulatory document on the fulfillment of design documentation for waste dumps, which do not require burial and which are subject to subsequent utilization. 2. Scientific-research, design, and other organizations having work experience with industrial establishments storing wastes in dumps should participate in the development of the regulatory documents. In that case, attention should be focused on the development of a procedure for evaluating the effect of dumps on environment as a function of geological, hydrogeological, hydrological, and other conditions for sites at which dumps are located. 3. The reliable shielding of dumps, which guarantees that no surface, soil, and ground water will be polluted by seepage flows and which permits the storage of wastes of various risk categories, is one of the most important conditions for the ecological safety of dumps. 4. The method that we have developed for shielding large horizontal and inclined areas, which utilizes chemical silting of the pores of the underlying soils and ensures a given permeability, makes it possible to build shields with a sufficiently high degree of operational reliability. 5. The reagents used to create the gel-forming solutions do not exert a negative influence on the environment, since the gel is in a bound and water-insoluble form and does not pass from the soil layer being shielded into the underlying water-bearing horizons. Translated from Gidrotekhnicheskoe Stroitel’stvo, No, 5, pp. 30–34, May, 1998.     

小浪底大坝工程施工近况及几个技术问题的处理

小浪底壤土斜心培堆石坝总填筑量为５１８４．７万ｍ３，基础开挖量达７７０万ｍ３，由中外３国４方联合中标承包施工。工程开工两年来进展顺利，坝基开挖至１９９５年底已完成５２０万ｍ３，并创月开挖强度１０１万ｍ３的世界先进水平。在大坝填筑前仍然进行了大量的科研试验，如将三区过渡料改在马粪滩开采加工；对大坝上游４Ａ类堆石填筑中是否加水等技术问题进行试验研究，确定不加水填筑。这些成果的实施，将对加快工程进度，确保工程质量，节省建设投资大有益处。     

定常有涡管流的速度场和涡量场

在试验研究的基础上,论述了有涡管流的产生条件及速度场和涡量场特性,给出了典型的流速分布并绘制了涡线。     

Clarifying the Relationship between Involvement Variables and Advertising Effectiveness among Young People

Previous research has indicated the need for an in-depth investigation of the role of involvement variables in advertising information processing among young people, in view of the unsuitability of existing adult persuasion models for a young population, the inadequate consideration of involvement variables among young people and the unique characteristics of this population. This study examined the effects of advertising involvement and product involvement on advertising effectiveness among young people, using a quantitative study of 252 4–15-year olds. Results show that advertising involvement and product involvement had a positive direct effect on ad effectiveness. In addition, all endogenous variables—subjective product knowledge, peer and parent influence and age—had an indirect effect on ad effectiveness, via advertising involvement and product involvement. Interestingly, subjective product knowledge and peer influence had no direct effect on ad effectiveness, but rather only an indirect effect. This study presents a more accurate depiction of the complexity of the process and shows that advertising involvement and product involvement contribute to a better understanding of the process among young people.