[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/iribarren-number-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki24\/iribarren-number-wikipedia\/","headline":"Iribarren number – Wikipedia","name":"Iribarren number – Wikipedia","description":"From Wikipedia, the free encyclopedia Dimensionless parameter Spilling breaker. Plunging breaker. Collapsing breaker. Surging breaker. In fluid dynamics, the Iribarren","datePublished":"2017-08-13","dateModified":"2017-08-13","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki24\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/6\/6a\/Spilling_breaker.gif\/300px-Spilling_breaker.gif","url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/6\/6a\/Spilling_breaker.gif\/300px-Spilling_breaker.gif","height":"45","width":"300"},"url":"https:\/\/wiki.edu.vn\/en\/wiki24\/iribarren-number-wikipedia\/","wordCount":2835,"articleBody":"From Wikipedia, the free encyclopediaDimensionless parameterSpilling breaker.Plunging breaker.Collapsing breaker.Surging breaker.In fluid dynamics, the Iribarren number or Iribarren parameter \u2013 also known as the surf similarity parameter and breaker parameter \u2013 is a dimensionless parameter used to model several effects of (breaking) surface gravity waves on beaches and coastal structures. The parameter is named after the Spanish engineer Ram\u00f3n Iribarren Cavanilles (1900\u20131967),[2] who introduced it to describe the occurrence of wave breaking on sloping beaches.[3]For instance, the Iribarren number is used to describe breaking wave types on beaches; or wave run-up on \u2013 and reflection by \u2013 beaches, breakwaters and dikes.[4][5][6]Table of ContentsDefinition[edit]Breaker types[edit]References[edit][edit]Other[edit]Definition[edit]The Iribarren number which is often denoted as Ir or \u03be \u2013 is defined as:[5]\u03be=tan\u2061\u03b1H\/L0,{displaystyle xi ={frac {tan alpha }{sqrt {H\/L_{0}}}},} \u00a0 with \u00a0 L0=g2\u03c0T2,{displaystyle L_{0}={frac {g}{2pi }},T^{2},}where \u03be is the Iribarren number, \u03b1{displaystyle {displaystyle alpha }} is the angle of the seaward slope of a structure, H is the wave height, L0 is the deep-water wavelength, T is the period and g is the gravitational acceleration. Depending on the application, different definitions of H and T are used, for example: for periodic waves the wave height H0 at deep water or the breaking wave height Hb at the edge of the surf zone. Or, for random waves, the significant wave height Hs at a certain location.Breaker types[edit] The type of breaking wave \u2013 spilling, plunging, collapsing or surging \u2013 depends on the Iribarren number. According to Battjes (1974), for periodic waves propagating on a plane beach, two possible choices for the Iribarren number are:\u03be0=tan\u2061\u03b1H0\/L0{displaystyle xi _{0}={frac {tan alpha }{sqrt {H_{0}\/L_{0}}}}} \u00a0 or \u00a0 \u03beb=tan\u2061\u03b1Hb\/L0,{displaystyle xi _{b}={frac {tan alpha }{sqrt {H_{b}\/L_{0}}}},}where H0 is the offshore wave height in deep water, and Hb is the value of the wave height at the break point (where the waves start to break). Then the breaker types dependence on the Iribarren number (either \u03be0 or \u03beb) is approximately:[4]breaker type\u03be0\u2013range\u03beb\u2013rangesurging or collapsing\u03be0 > 3.3\u03beb > 2.0plunging0.5 < \u03be0 < 3.30.4 < \u03beb < 2.0spilling\u03be0 < 0.5\u03beb < 0.4References[edit][edit]^ Kjeldsen, S.P. (1968), B\u00f8lge brydning, fysisk beskrivelse [Wave breaking, physical description] (in Danish), Technical University of Denmark, M.Sc. thesis, 110 pp^ Real Academia de Ciencias Exactas, F\u00edsicas y Naturales (Spanish Royal Academy of Sciences) (2003), Relaci\u00f3n de Acad\u00e9micos desde el A\u00f1o 1847 hasta el 2003 (PDF) (in Spanish), pp.\u00a024\u201325^ Iribarren & Nogales (1949)^ a b Battjes (1974)^ a b Holthuijsen (2007)^ Bruun (1984)Other[edit]Battjes, J.A. (1974). “Surf similarity”. Proceedings 14th International Conference on Coastal Engineering. Coastal Engineering Proceedings. Vol.\u00a01. pp.\u00a0466\u2013480. doi:10.9753\/icce.v14.26.Bruun, P., ed. (1984), Design and construction of mounds for breakwaters and coastal protection, Developments in geotechnical engineering, vol.\u00a037, Elsevier, pp.\u00a0xi & 39, ISBN\u00a00-444-42391-5Goda, Yoshimi (2010), Random seas and design of maritime structures (3rd\u00a0ed.), World Scientific, p.\u00a0213, ISBN\u00a0978-9814282406Holthuijsen, L.H. (2007), Waves in oceanic and coastal waters, Cambridge University Press, p.\u00a0242, ISBN\u00a0978-1139462525Iribarren, C.R.; Nogales, C. (1949), “Protection des ports”, Proceedings XVIIth International Navigation Congress, Section II, Communication, vol.\u00a04, Lisbon, pp.\u00a031\u201380 "},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/iribarren-number-wikipedia\/#breadcrumbitem","name":"Iribarren number – Wikipedia"}}]}]