In the past Computational Fluid Dynamics (CFD) was confined to large organisations capable of developing and supporting their own codes. But recently there has been a rapid increase in the availability of reasonably priced commercial codes, and many more industrial organisations are now able to routinely use CFD. Advances of CFD in Fluid Machinery Design provide the perfect opportunity to find out what industry is doing and this book addresses how CFD is now being increasingly used in the design process, rather than as a post-design analysis tool. The complete contents include: Trends in industrial use of CFD; Challenges and methodologies in the design of axial flow fans for high-bypass-ratio, gas turbine engines using steady and unsteady CFD; A three-dimensional inverse method based on pressure loading for the design of turbomachinery blades; Application of CFD to the design and analysis of axial and centrifugal fans and compressors; The design and performance of a transonic flow deswirling system - an application of current CFD design techniques tested against model and full-scale experiments; Recent developments in unsteady flow modelling for turbomachinery aeroelasticity; Computational investigation of flow in casing treatments for stall delay in axial flow fans. The contents also include: Use of CFD for the three-dimensional hydrodynamic design of vertical diffuser pumps; Recommendations to designers for CFD pump impeller and diffuser simulations; Three dimensional CFD - a possibility to analyse piston pump flow dynamics; CFD analysis of screw compressor performance; Prediction of aerothermal phenomena in high-speed discstator systems; and, Use of CFD in the design of a shaft seal for high-performance turbomachinery. Users and potential users, of CFD for the design of fluid machinery, managers, designers, and researchers working in the field of 'industrial flows', will all find "Advances of CFD in Fluid Machinery Design" a valuable volume discussing state-of-the-art developments in CFD.

The collective belief in the End of the World, as described in the Biblical Book of Revelation, can be seen in public reaction to terrorist outrages such as those of Sept. 11, in the preoccupation with disasters, in the obsession with UFO's and the possibility of encountering extra-terrestrial life, and in the breakdown of social structures. Edinger argues that this very real psychological force is vitally important for our times, and he offers an alternative to catastrophe through understanding the meaning of these radiant scriptures.

Despite the overwhelming edge the US possesses in raw military power over its rivals since the end of the Cold War, regional foes have consistently defied the ultimatums and coercive efforts of the US and its allies. While the US sometimes achieves its national security objectives, it usually does so only after an enormous expenditure of resources. The disconnect between the concepts of traditional coercive theory and reality prompts an obvious question: Is there a more effective way for the US to achieve its national security objectives than direct coercive attempts? To answer this question, this study investigates the concept of indirect coercion. The term refers to the ability to influence third parties such that the third party can modify the original target's behavior in a manner favorable to the United State's objectives. This study explores the mechanics of indirect coercion and provides a detailed classification of various types of third parties in an effort to discover conditions that are conducive to an indirect approach to modifying behavior in the international arena.

Due to a variety of forces, the interest in supplying U.S. ground forces in support of U.N. peacekeeping operations is at its lowest point since the end of the Cold War. The ignominious withdrawal of U.S. ground forces from Somalia in 1994 coupled with the relative success of U.S. airpower in recent conflicts such as ALLIED FORCE leaves a situation whereby the U.S. public views airpower as an "acceptable" panacea for solving these situations. Despite the limited validity of this belief, airpower might realistically be the only contribution that Congress is willing to authorize in a time when the military is stretched fighting terrorism and possibly sustaining a long-term commitment in Afghanistan and Iraq. Despite the fact that U.S. airpower will be involved in peace operations, the nature of intrastate conflict in the Post-Cold War era where peace operations are likely to occur is vastly different than the symmetrical threats the U.S. Air Force is most suited to fight. Based on this, several authors have questioned whether airpower is still relevant in these situations where it is difficult to distinguish combatants from non-combatants. More important for airpower strategists is how to effectively use airpower when political restraints limit the application of lethal force. Given that airpower is the only contribution the U.S. might be willing to make, how can airpower be used effectively in peace operations?