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Model experiments of a trimaran with transom stern

Jia, J.B. (author), Zong, Z. (author), Shi, H.Q. (author)

journal article 2009

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Self-propulsion testing study of a four-propeller vessel

Bi, J.Y. (author), Zong, Z. (author), Fu, G.N. (author)

journal article 2010

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Stochastic hydroelastic analysis of a very large floating structure using pseudo-excitation method

Li, Hai-Tao (author), Wang, Qi-bin (author), Zong, Zhi (author), Sun, Lei (author), Liang, Hui (author)

journal article 2014

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Application of discrete mathematics in urban transportation system analysis

Yao, B. (author), Yu, B. (author), Chen, G. (author), Mu, R. (author), Zong, F. (author)

Editorial.

journal article 2014

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Numerical investigation of the scale effect of hydrodynamic performance of the hybrid CRP pod propulsion system

Wang, Z-Z (author), Xiong, Y. (author), Wang, R. (author), Zong, C.-H. (author)

journal article 2016

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Characterisation of plasma synthetic jet actuators in quiescent flow

Zong, H. (author), Kotsonis, M. (author)

An experimental characterisation study of a large-volume three-electrode plasma synthetic jet actuator (PSJA) is presented. A sequential discharge power supply system is used to activate the PSJA. Phase-locked planar particle image velocimetry (PIV) and time-resolved Schlieren imaging are used to characterise the evolution of the induced flow...

journal article 2016

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Electro-mechanical efficiency of plasma synthetic jet actuator driven by capacitive discharge

Zong, H. (author), Kotsonis, M. (author)

A simplified model is established to estimate the jet exit density variation of a plasma synthetic jet actuator (PSJA) driven by a capacitive arc discharge. This model, in conjunction with phase-locked planar particle imaging velocimetry (PIV) measurements, enables the calculation of jet mechanical energy for different operating conditions....

journal article 2016

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A 60 GHz Frequency Generator Based on a 20 GHz Oscillator and an Implicit Multiplier

Zong, Z. (author), Babaie, M. (author), Staszewski, R.B. (author)

This paper proposes a mm-wave frequency generation technique that improves its phase noise (PN) performance and power efficiency. The main idea is that a fundamental 20 GHz signal and its sufficiently strong third harmonic at 60 GHz are generated simultaneously in a single oscillator. The desired 60 GHz local oscillator (LO) signal is delivered...

journal article 2016

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Effect of slotted exit orifice on performance of plasma synthetic jet actuator

Zong, H. (author), Kotsonis, M. (author)

This study experimentally investigates the influence of exit orifice shape on the performance characteristics of a three-electrode plasma synthetic jet actuator. High-speed Schlieren imaging system and phase-locked two-component PIV measurements are used for flowfield characterisation in quiescent conditions. Two actuator configurations with...

journal article 2017

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Interaction between plasma synthetic jet and subsonic turbulent boundary layer

Zong, H. (author), Kotsonis, M. (author)

This paper experimentally investigates the interaction between a plasma synthetic jet (PSJ) and a subsonic turbulent boundary layer (TBL) using a hotwire anemometer and phase-locked particle imaging velocimetry. The PSJ is interacting with a fully developed turbulent boundary layer developing on the flat wall of a square wind tunnel section...

journal article 2017

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Realisation of plasma synthetic jet array with a novel sequential discharge

Zong, H. (author), Kotsonis, M. (author)

journal article 2017

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Experimental Investigation on Frequency Characteristics of Plasma Synthetic Jets

Zong, H. (author), Kotsonis, M. (author)

The performance of a two–electrode plasma synthetic jet actuator (PSJA) is investigated for a wide range of dimensionless actuation frequencies (f*) using high-speed phase-locked Particle Imaging Velocimetry (PIV) measurements. The jet-induced velocity fields in the axisymmetric plane are measured during both...

journal article 2017

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Influence of nondimensional heating volume on efficiency of plasma synthetic jet actuators

Zong, H. (author)

The influence of geometrical parameters on the electromechanical efficiency of the plasma synthetic jet actuator is investigated with electrical measurements and phase-locked planar particle imaging velocimetry measurements. Two actuators with changeable electrode distance are tested. The first actuator features a fixed cavity volume of 942 mm3;...

journal article 2018

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Plasma synthetic jet actuators for active flow control

Zong, H. (author)

In the last few decades, active flow control (AFC) technology has been developed to minimize the aerodynamic drag of transportation vehicles and maximize the propulsion efficiency of thermodynamic engines. The key of this technology is the actuators. Among all the actuators that have been proposed (i.e. fluidic, moving object, or plasma-based),...

doctoral thesis 2018

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Airfoil flow separation control with plasma synthetic jets at moderate Reynolds number

Zong, H. (author), van Pelt, T. (author), Kotsonis, M. (author)

Abstract: An array of 26 plasma synthetic jet actuators (PSJA) is flush-mounted on a NACA-0015 airfoil model to control the leading-edge flow separation at moderate Reynolds number (Re_c= 1.7 × 10 ⁵). The stall angle of this airfoil is postponed from 15. 5 ^∘ to approximately 22 ^∘, and the peak lift...

journal article 2018

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Plasma synthetic jet actuators for active flow control

Zong, H. (author), Chiatto, Matteo (author), Kotsonis, M. (author), de Luca, Luigi (author)

The plasma synthetic jet actuator (PSJA), also named as sparkjet actuator, is a special type of zero-net mass flux actuator, driven thermodynamically by pulsed arc/spark discharge. Compared to widely investigated mechanical synthetic jet actuators driven by vibrating diaphragms or oscillating pistons, PSJAs exhibit the unique capability of...

review 2018

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Synthesis, characterization, and CO₂ uptake of mellitic triimide-based covalent organic frameworks

Veldhuizen, H.V. (author), Vasileiadis, A. (author), Wagemaker, M. (author), Mahon, T.R. (author), Mainali, D.P. (author), Zong, Lishuai (author), van der Zwaag, S. (author), Nagai, A. (author)

journal article 2019

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A Supply Pushing Reduction Technique for LC Oscillators Based on Ripple Replication and Cancellation

Chen, Y. (author), Liu, Yao-Hong (author), Zong, Z. (author), Dijkhuis, Johan (author), Dolmans, Guido (author), Staszewski, R.B. (author), Babaie, M. (author)

In this paper, we propose a method to suppress supply pushing of an LC oscillator such that it may directly operate from a switched-mode dc-dc converter generating fairly large ripples. A ripple replication block (RRB) generates an amplified ripple replica at the gate terminal of the tail current source to stabilize the oscillator's tail...

journal article 2019

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A Low-Noise Fractional-N Digital Frequency Synthesizer With Implicit Frequency Tripling for mm-Wave Applications

Zong, Z. (author), Chen, Peng (author), Staszewski, R.B. (author)

In this paper, we propose a 60-GHz fractional-N digital frequency synthesizer aimed at reducing its phase noise (PN) at both the flicker (1/f ³ ) and thermal (1/f ² ) regions while minimizing its power consumption. The digitally controlled oscillator (DCO) fundamentally resonates at 20 GHz and co-generates a strong...

journal article 2019

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High-Purity Digitally Intensive Frequency Synthesis Exploiting Millimeter-Wave Harmonics

Zong, Z. (author)

This thesis focuses on improving the phase noise and power efficiency<br/>of millimeter-wave (mm-wave) frequency synthesizers in nanometer CMOS.<br/>The mm-wave frequency spectrum is widely adopted in various upcoming<br/>volume commercial wireless applications. These new applications provide<br/>more interconnection between the physical and...

doctoral thesis 2019