cross-sectional perimeter

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• Wetted perimeter — The wetted perimeter is the perimeter of the cross sectional area that is wet. The term wetted perimeter is common in Civil Engineering, Environmental Engineering and heat transfer applications; it is associated with the hydraulic diameter.… …   Wikipedia

• building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …   Universalium

• Manning formula — The Manning formula, known also as the Gauckler–Manning formula, or Gauckler–Manning–Strickler formula in Europe, is an empirical formula for open channel flow, or free surface flow driven by gravity. It was first presented by the French engineer …   Wikipedia

• Fin (extended surface) — In the study of heat transfer, a fin is a surface that extends from an object to increase the rate of heat transfer to or from the environment by increasing convection. The amount of conduction, convection, or radiation of an object determines… …   Wikipedia

• hydraulic radius — noun : the ratio of the cross sectional area of a channel or pipe in which a fluid is flowing to the wetted perimeter of the conduit * * * the ratio of the cross sectional area to the perimeter of a pipe, outlet, or the like, through which a… …   Useful english dictionary

• Area — This article is about the geometric quantity. For other uses, see Area (disambiguation). The combined area of these three shapes is between 15 and 16 squares. Area is a quantity that expresses the extent of a two dimensional surface or shape in… …   Wikipedia

• QFN — A QFN or Quad Flat No leads or a MLF package is an integrated circuit package which falls under Surface mount technology packages used on printed circuit boards. This kind of package is similar to the Quad Flat Package, but the leads do not… …   Wikipedia

• environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

• Grid plan — A simple grid plan road map (Windermere, Florida). Surveyor s plan of Salt Lake City, ci …   Wikipedia

• hydraulic radius —   stream efficiency measured by dividing cross sectional area of a stream by the wetted perimeter. A higher ratio indicates greater efficiency as area will be greater compared to wetted perimeter and it is the latter which reduces efficiency… …   Geography glossary

• Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …   Wikipedia