Blar i NTNU Open på forfatter "Khodabandeloo, Babak"
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Acoustic generation of underwater cavities - Comparing modeled and measured acoustic signals generated by seismic air gun arrays
Khodabandeloo, Babak; Landrø, Martin; Hanssen, Alfred (Journal article; Peer reviewed, 2017)Underwater vapor cavities can be generated by acoustic stimulation. When the acoustic signals from several air guns are reflected from the sea surface, the pressure drop at some locations is sufficient for cavity growth ... -
Acoustically induced cavity cloud generated by air-gun arrays—Comparing video recordings and acoustic data to modeling
Khodabandeloo, Babak; Landrø, Martin (Journal article; Peer reviewed, 2018)For seismic air-gun arrays, ghost cavitation is assumed to be one of the main mechanisms for high-frequency signal generation. Ghost cavitation signals are weak for seismic frequencies (<300 Hz) and do not contribute to ... -
Characterizing the acoustic properties of the cavity cloud generated close to an air-gun array as a time-dependent effective medium
Khodabandeloo, Babak; Landrø, Martin (Journal article, 2018)A ghost cavity cloud consists of many small vapour cavities and appears above and around the air-guns in the source array a few milliseconds after the source is fired. Since there are dissolved gases and stable microbubbles ... -
High frequency ghost cavitation - a comparison of two seismic air-gun arrays using numerical modeling
Khodabandeloo, Babak; Landrø, Martin (Journal article; Peer reviewed, 2017)Ghost cavitation is probably the mechanism behind the majority of high frequencies (above 5 kHz) generated by seismic air-gun arrays. Such high frequencies are less important in seismic reflection imaging. High frequency ... -
Modeling and characterizing acoustic signals from cavity clouds generated by marine seismic air-gun arrays: Implications for marine mammals
Khodabandeloo, Babak (Doctoral theses at NTNU;2018:239, Doctoral thesis, 2018)Marine seismic air-gun arrays generate not only low-frequency (<∼300 Hz) acoustic waves which benefit seismic imaging, but also high-frequencies up to tens of kilohertz. Although such high-frequencies are much weaker than ...