Nonlinear free surface action with an array of vertical cylinders

Huang, J.

doi:10.1007/bf02486717

Cited by 8 publications

(5 citation statements)

References 18 publications

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“…Liberobacter asiaticum Capoor et al, 1967Kohno et al, 2002200220022004HLB 1988Miyakawa and Tsuno, 19891997200120032005HLB da Graça, 1991 M. exotica L. Waterhouse, 1998HLB 19802001Kohono et al, 2002 C. de- Ten male or female adults were released onto every potted plant. The total number of males and females on the plants was 37 (74%) and 49 (98%), respectively.…”

Section: Hlbmentioning

confidence: 99%

Location and Preference of Adult Asian Citrus Psyllid, Diaphorina citri (Homoptera: Psyllidae) on Chinese Box Orange Jasmine, Murraya exotica L. and Flat Lemon, Citrus depressa.

Yasuda¹,

Kawamura²,

Tsuyoshi³

2005

Jpn. J. Appl. Entomol. Zool.

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Abstract:The location and preference of adult Asian citrus psyllid, Diaphorina citri Kuwayama, a vector of the citrus huanglongbing (greening disease) Liberobacter asiaticum, on two host plants, Murraya exotica L. and Citrus depressa Hayata, were investigated in Okinawa Prefecture, Japan. While the adults of D. citri were found on all parts of the C. depressa tree and on the M. exotica tree, all of the D. citri eggs and most of the nymphs and adults were found on young shoots and young leaves. We suggest that it is possible to save labor in the investigation and control of the psyllid by attentively checking the young shoots of M. exotica. Investigation on the distribution of D. citri adults on M. exotica plantlets hung upside down in a container showed that although no difference was found between frequencies of males on young leaves and mature leaves, significantly more females were found on the apical buds, suggesting that females have a preference for this part of the tree.

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Section: Hlbmentioning

confidence: 99%

Location and Preference of Adult Asian Citrus Psyllid, Diaphorina citri (Homoptera: Psyllidae) on Chinese Box Orange Jasmine, Murraya exotica L. and Flat Lemon, Citrus depressa.

Yasuda¹,

Kawamura²,

Tsuyoshi³

2005

Jpn. J. Appl. Entomol. Zool.

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“…The interaction between waves and arrays of vertical cylinders has also been investigated by many authors (Spring & Monkmeyer, 1974;Kagemoto & Yue, 1986;Abul-Azm & Williams, 1989;Linton & Evans, 1990;Ghalayini & Williams, 1991;Moubayed & Williams, 1995) and an extensive review on this subject was conducted by McIver (2002). More recently, Huang (2004), Walker & Taylor (2005), Wang & Wu (2007), and Steward (2018), have studied arrays of 2, 4 and 25 cylinders separated by short distances, / d L 1 < . Experimental studies about one or more cylinders have been conducted by Ohl et al (2001aOhl et al ( , 2001b, Kagemoto et al (2002), Kagemoto et al (2014), and Kamra et al (2019), among others.…”

Section: Kcmentioning

confidence: 99%

Effects of an array of widely separated vertical cylinders on time-averaged properties of progressive monochromatic waves

Aguilera

Rosman

Neves

2020

RBRH

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The design of monopile foundations for offshore wind farms, the estimate of wave loads, and the effect of the structures on the environment usually consider one single vertical cylinder. This choice is based on the size of the ratio cylinder diameter to wavelength, and on the large distances between turbines. However, for large arrays of monopiles, the ensemble effect must be investigated. This study addresses monochromatic wave propagation through a rectangular array of four cylinders 800 m and 300 m apart, considered here as the fundamental geometry for an arbitrary array of monopiles turbines. Results for bottom velocities, mean water level, mass transport, and radiation stress tensor in the presence of the array are compared with those for a single cylinder. The numerical model WAMIT® is used to compute the potential velocity solution. Relevant spatial variations were found, especially for radiation stresses, for different periods and directions of propagation. Diffraction effects on the wave field by the array are significantly stronger than the superposition of individual effects of isolated cylinders under the same conditions. Impacts of the entire wind farm on bottom morphodynamics near the foundations, on the design loads, and on the wave climate past the wind farm are discussed.

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“…They suggested that a near-trapping phenomenon exists for second-order waves in an array of cylinders at half the wave frequency at which the corresponding linear near-trapped mode occurs. Huang (2004) developed a semi-analytical solution for the second-order wave diffraction by an array of cylinders in monochromatic waves that yields simple expressions for potentials in the vicinity of cylinders. Eatock Taylor (2007) showed the linear wave amplitudes in the vicinity of a four-cylinder structure for different incident wave directions at a frequency corresponding to a near-trapped mode.…”

Section: Introductionmentioning

confidence: 99%