الفهرس 
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Abstract
This thesis is concerned with the hydrodynamic aspects of the shallow water vessels. This includes four chapters, and a summary is given for each chapter. Chapter (1)
This chapter contains the introduction of this thesis. This introduction indicates the different types of units which operate on the Nile and discusses the hydrodynamic problems which arise from the effect of shallow water on these vessels. Also, the introduction defines the maximum allowable dimensions of Nile vesels.
Chapter (2) In this chapter, the different components of ship
resistance are discussed according to Froude assumptions and according to the subdivision by stresses in deep water. Also the effect of shallow water on ship resistance components is discussed. Two computer programs are developed, the first is used to calculate the total ship resistance in shallow water using Schlichting and scott methods, and the second program for the calculation of the change of frictional resistance due to shallow
water effect. This chapter discusses different formulae for blockage correction and a computer program, based on these formulae, is presented. Also, this chapter discusses different methods for the numerical determination of the sinkage and trim due to shallow water effect and a computer program is presented based on these methods.
Since all the available powering methods are always lacking in the large range of BIT, this thesis proposes a BIT correction for ships which have large BIT. Chapter (3): This chapter discusses the different marine propulsion devices and its suitability to shallow water operation as well as the present application in Nile units. This chapter discusses also the ability of the propulsion devices for working as steering devices in addition to the propulsion action, or its effect on the action of the conventional rudder. Two computer programs are presented, the first is used to perform the optimum conventional propeller design according to B-seriee and to calculate the minimum blade area ratio according to cavitation diagram of Burrill, and the second program is used to perform a comparison between different propeller types. This chapter also presents the different propulsion system arrangements as well as the different shapes of ship stern.