Geotechnical Engineering-I Lec #27: Flow Nets

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The graphical representation of this flow is known as flow nets. A set of equipotential lines and flowlines constitute a flow net. During its flow, groundwater encounters three types of boundaries. One is an impermeable boundary, the second is a constant head boundary, and the third is a water table boundary.

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In the end, complex potential is briefly introduced. In the figure below, boundaries BD, CD, and the upper half of AC are impermeable boundaries. AB and the lower half https://accounting-services.net/accountant-salary/ of AC are constant head boundaries, so water will flow perpendicular to them. In the image below AD, BC, and 1/3 of both extreme sides of DC are impermeable.

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• Characteristics of inviscid flow is introduced and the rationality of neglecting viscosity in many actual flow cases is discussed.
• This chapter introduces inviscid flow and potential flow method.

AB and middle 1/3 rd of CD are constant head boundaries. One way to increase the factor of safety against heave is to use a filter
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SOIL-MECH-LATERAL-EARTH-PRESSURE-QUIZ.docx

Flow through an impermeable boundary is not possible. In the case of a constant head boundary, the flow of water is directed perpendicular to it. This chapter introduces inviscid flow and potential flow method. Characteristics of inviscid flow is introduced and the rationality of neglecting viscosity Chapter 5: Flow Nets in many actual flow cases is discussed. Then the characteristics of rotational flow for inviscid flow is discussed. For irrotational flow, velocity potential is introduced and several elementary flows are taken as an example to illustrate the computational methods for planar potential flow theory.

• This chapter introduces inviscid flow and potential flow method.
• Characteristics of inviscid flow is introduced and the rationality of neglecting viscosity in many actual flow cases is discussed.
• AB and middle 1/3 rd of CD are constant head boundaries.
• In the figure below, boundaries BD, CD, and the upper half of AC are impermeable boundaries.
• Find out more about saving content to Google Drive.